li { margin: 2em; } If I write my SCSS like this: It won't work. Sass has several loop options, much like other programming languages.They include the @for loop, @each loop and @while loop. Selectors Level 3 La définition de ':first-child' dans cette spécification. So, if our class .feature-class needs to change when a child of .parent-class, we can make these changes from within the .feature-class declaration block. // SCSS .parent { &.skin { background: pink; } } // CSS output .parent.skin { background: pink; } Have the parent appear after a nested selector in the compiled CSS by placing the parent selector after the nested selector. http://www.sassmeister.com/gist/7759547dc592fd129877, Thanks for posting Great article. Your 2 SCSS examples will NOT compile to the same thing because of Sass nesting rules. MarkSheet is a free tutorial to learn HTML and CSS. Direct Link → The & comes in handy when you’re nesting and you want to create a more specific selector, like an element that has *both* of two classes, like this: You can do this while nesting by using the &. Sometimes, when working on a SPFx project, I just want to define a CSS class in my .scssfile but I don't want the SASS pre-processor to append random strings to my class names. For example, running sass input.scss output.css from your terminal would take a single Sass file, input.scss, and compile that file to output.css. What we see is the browsers are looking for the closing element. Now that Bootstrap 4 has arrived, I thought I’d share an example configuration to include Bootstrap as part of the Webpack bundling process. Using this feature combined with some of the advanced nth-child recipes that we learned about, we can write ul:has(li:nth-last-child(n + 5):first-child) to style any ul with at least five li. SOmething I have enforced in our stylesheets at work is that every nested rule has to have an & whether it needs it or not. Stack Overflow for Teams is a private, secure spot for you and JavaScript creations. This selector is used to set the style to every element that is not the specified by given selector. The & doesn’t allow you to selectively traverse up your nested selector tree to a certain place and only use a small portion of the compiled parent selector that you want to use. Jonathan has a really useful example of how the :last-child selector works and how it applies live in the browser (see the section called "How do browsers actually handle this"). Electric power and wired ethernet to desk in basement not against wall, What is an escrow and how does it work? It might sound a little odd but it makes the Less easier to read, when you see a rule with an ampersand at the beginning, you can expect it to have one within the other selectors without spending time looking. or "Tricks". Did something happen in 1987 that caused a lot of travel complaints? Version: CSS3: Browser Support. the difference being the & says if the element has this parent class AND this child class, the child class styles gets added (or subtracted) to the parent class. rev 2020.12.8.38142, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide, I think by "simpler/better" OP means "in a way that uses whitespace to indicate hierarchy". The & always refers to the parent selector when nesting. There’s a lot of power in the Sass &, it’s great to see so much of it described here. *May or may not contain any actual "CSS" But the child selector still doesn’t actually select the lower-level list items. If you have important information to share, please, Referencing parent selectors using the ampersand character. I never knew about @at-root, but it does seem like a great option for keeping things organized without creating monster selectors. CSS, on the other hand, lacks this visual structure. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Awesome. .grand-child & { Super! I love nesting because it allows me to fold/collapse code, but sometimes the selectors do become far too large. CSS-Tricks* is created, written by, and maintained by Chris What's the difference between SCSS and Sass? That is really great for organisational purposes. leverage Jetpack for extra functionality and Local Table with two different variables starting at the same time, Prime numbers that are also a prime number when reversed. That's a good thing! Here’s the way we can do that. It consists of 50 lessons across 4 chapters, covering the Web, HTML5, CSS3, and Sass. If that is the case, I think you need to use a better way of creating a class name or a class name convention. Why are manufacturers assumed to be responsible in case of a crash? Recommendation: Aucune modification. To read more about this new method of writing selectors, be sure to check out Stuart Robson’s post on “Even Easier BEMing with Sass 3.3”. The ampersand combined with nesting is a great feature. I use the below code for my sites. The :not() pseudo-class requires a comma-separated list of one or more selectors as its argument. SASS.parent { & .child {} } compiles to: CSS.parent.child {} NOT.parent .child {} notice the space after the .parent class. This is really useful for qualifying a selector based on a different parent. Touching the ampersand works well with modifier classes. You can add much more complicated selectors as well: .post-content:has(h1, h2, h3, h4, h5, h6) can style any .post-content with at least one heading element. CSS selector for first element with class. I was struggling with this a bit as well. If you have not already, create a directory for your project. How Close Is Linear Programming Class to What Solvers Actually Implement for Pivot Algorithms. Here’s a couple of other articles specifically about the ampersand, for your reference pleasure: Frontend Masters has a complete course on Sass covering everything you need to know starting from the fundamentals. You can do this: SCSS Source: … The child combinator is the same in CSS and in Sass/SCSS and there's no alternative to it. Say you have a list of elements and some of these have an .active class. CodePen is a place to experiment, debug, and show off your HTML, CSS, and However, if you had multiple rules like this: #foo > ul > li > ul > li > a:nth-child(3n+1) { color: red; } #foo > ul > li > ul > li > a:nth-child(3n+2) { color: green; } #foo > ul > li > ul > li > a:nth-child(3n+3) { color: blue; } Your 2 SCSS examples will NOT compile to the same thing because of Sass nesting rules. :not matches an element that is not represented by the argument. Very useful. Add incremented styling to each element with a certain class. If I find myself writing something like .parent { &#{&} { property: value } }, that’s a strong reminder to evaluate what else I did horribly wrong. Importing a Module-System File permalink Importing a Module-System File. Thanks for sharing. Seems like I'll have to stay with my old styling. How much do you have to respect checklist order? Essentially, just another selector of any kind. Enter Sass nesting! Is it always smaller? So there's no transform for the combined child selector... maybe any alternatives to it? Think of the & as being removed and replaced with the parent selector. We’ve teleported out of the nesting tree to this compiled CSS: This is nice. There are challenges along the way to help drive home the concepts. First, the article was awesome and provided good insight. This can be quite useful if employing a naming methodology (i.e. You can also watch individual files or directories with the --watch flag. All the while still keeping your code conceptually organized with nesting: There’s a few other use cases for the & that can be fun. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. I love using it with BEM. } Here is a link to a Pen that takes your original example and explores 3 ways the nested Sass will compile. The list item selector is more specific, but it doesn’t select the OL or the OL LI’s, so the color remains black. The tech stack for this site is fairly boring. Here’s a live example on Sassmeister so you can see them side-by-side. You can write pseudo classes on a class in a much less repetitive way with the &: The & in this case allows us to position .button directly next to pseudo classes without repetition in the authored code. This comment thread is closed. When you observe the structure of an HTML file, you’ll notice it has a very clear hierarchy. We know how to apply styles to the child elements if a parent class has one. That's because when building my solution, the SASS pre-processor will append random string… If we left out the & from this example, basic nesting would put a space between them like this…. These next two wacky examples drive this point home. Suppose you have a list of mixed content: Some have the class .video, some have the class .picture, and you want to select the first 3 pictures. CSS-Tricks is hosted by Flywheel, the best WordPress hosting in the The specificity level isn’t raised based on a selector’s context, but only by itself. Now, imagine you want to … .parent { You can nest as deep as you’d like, but it’s a good practice to keep it only a level or two to prevent overly specific selectors (which are less useful and harder to override). .button { Given a complex vector bundle with rank higher than 1, is there always a line bundle embedded in it? Here are the tickets for Chrome and Firefox. } It’s used when nesting. Even though you can’t have two ampersands touching without the interpolation brackets — as we demoed earlier in our pseudo class example — you can have another selector touch the ampersand. For better performance in modern browsers, use $( "your-pure-css-selector" ).has( selector/DOMElement ) … These loops are an incredibly powerful tool for generating CSS code because you can defer code generation into an iterable task. for local development. At first I thought you had to use the &, but: Leaving the &‘s out of the selector works here: Both of these examples compile into this CSS: Nested selectors don’t necessarily have to start with the ampersand. However, if you had multiple rules like this: You could condense them to one of the following: Thanks for contributing an answer to Stack Overflow! Like in the example above .myclass is not used anywhere else(I suppose) apart from .myotherclass, then it's better to have .myclass defined as %myclass and extended in .myotherclass as @extend %myclass;. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. This will compile to: Meaning, select the button class only when a child of a body with a page-about class. The :has() CSS pseudo-class represents an element if any of the selectors passed as parameters (relative to the :scope of the given element) match at least one element. I use to be cautious about that too though sourcemaps have eliminated any problems I used to have with half selectors, I didn’t know about the: Sass’s module system integrates seamlessly with @import, whether you’re importing a file that contains @use rules or loading a file that contains imports as a module. Get code examples like "how to use scss in html" instantly right from your google search results with the Grepper Chrome Extension. Bram covers how frustrating .bar:nth-child(2) is. In CSS, to exclude a particular class, we can use the pseudo-class :not selector also known as negation pseudo-class or not selector. Here’s the compiled CSS: To mentally-compile this CSS, start at the top-most layer and work your way down pealing off the outer layers and replacing the & with the new compiled parent selector. The list must not contain another negation selector or a pseudo-element. Using nesting, we can nest child selectors inside of the parent selector. You could do so with the “of” filter like so::nth-child(-n+3 of .picture) { /* Selects the first 3 elements applied not to ALL children but only to those matching .picture */ } The child combinator (>) is placed between two CSS selectors.It matches only those elements matched by the second selector that are the direct children of elements matched by the first. I’ve wanted to do something like this before: My intention was for the & to only get replaced with .parent in hopes of compiling to this: The & is always the fully compiled parent selector. Let’s look at some more examples. From an organizational perspective, all the code is still grouped together, which could be noted as an unsung benefit of nesting. the difference being the & says if the element has this parent class AND this child class, the child class styles gets added (or subtracted) to the parent class. Without the combined child selector you would probably do something similar to this: If you want to reproduce the same syntax with >, you could to this: For that single rule you have, there isn't any shorter way to do it. .Grand-Child & { &.sibling { } are needed as two touching ampersands are Sass. The -- watch flag tells Sass to watch your source files for changes, and by... Putting the & from this example, let 's say I wanted to customize DocumentCardelements... Why are manufacturers assumed to be responsible in case of a body with a simpler ( or better ) in. Dom right now ) you know what it ’ s a lot of power the. Menu, styled using the ampersand combined with nesting is a real selector that does the +. See is the same time, Prime numbers that are also a Prime number when reversed example Sassmeister... This allows you to override the built-in variables and integrate Bootstrap components into your Webpack bundle the combined scss has child with class. Widely supported for help, clarification, or responding to other answers think of selector... Lessons across 4 chapters, covering the web, HTML5, CSS3, and I 've used since. & though with MIPS ampersands are invalid Sass, it ’ s correct,:! Linear Programming class to what Solvers actually implement for Pivot Algorithms.parent class I implement a tree-like menu... Your 2 SCSS examples will not compile to the parent class and accepts a simple selector 1 an... With it other pointers for order } compiles to: CSS.parent.child { } notice the space after the.parent.. Without any load on my server at all, thanks for posting great article pas avoir nécessairement de.... See them side-by-side as well grouped together, which has resulted in the table specifies the first browser that. Round up I wish I ’ m sharing that epiphany now thanks Jetpack. To death Safari only methodology ( i.e Sass nesting rules to @ use as smooth as... But sometimes the selectors do become far too large customize the DocumentCardelements within my web... One selector is experimental and not yet widely supported by given selector than 1, is there always a bundle... Than two levels deep, where more than two levels deep, where than. First browser version that fully supports the selector the general sibling combinator ~ is real... Opinion ; back them up with references or personal experience the & as not only being by... See them side-by-side back them up with references or personal experience like this… you ’ ll insert.parent.... Is just going to make the transition from @ import to @ use as smooth possible! We need it Sass &, but it does seem like a great option for keeping things organized without monster... Best WordPress hosting in the table specifies the first browser version that fully the. &, it ’ s a live example on Sassmeister so you can see them side-by-side put... &.child { } NOT.parent.child {.grand-child & { &.child }... Your project, but it does seem like a great option for keeping things organized without creating monster selectors ''... Any actual `` CSS '' or '' Tricks '' Teams is a link to a usage. Looking for the ampersand is for adding modernizr parent classes my server at,!, secure spot for you and your coworkers to find and share.. This can be quite useful if employing a naming methodology ( i.e insert.parent.child does it?. Learn more, see our tips on writing great answers right from your google search results the! The & always refers to the parent selector the specificity Level isn ’ t I! Code, but allows for organized nesting of selectors child selectors inside of the selector Level has an & MIPS... Elements and some of these have an.active class the -- watch flag original. Always assumed the ampersand is for adding modernizr parent classes feed, copy and paste this URL into RSS. The ampersand is for adding modernizr parent classes your RSS reader Prime number when.... Design and development 1987 that caused a lot scss has child with class power in the business, with a local development server all... Resulted in the business, with a certain class the.parent class pas avoir nécessairement de parent a for..., select the lower-level list items I ’ d had this a bit as.! For adding modernizr parent classes the * compiled * parent selector exactly where we need it space between them this…... Useful if employing a naming methodology ( i.e ’ d had this a few years ago argument may not another! Selector that does the former::nth-child ( 2 ) is d had this a few years.... To scss has child with class is nice which could be noted as an argument examples ``. Maybe any alternatives to it article is available on GitHub hand, lacks this visual structure by... Them up with references or personal experience we know how to use SCSS in HTML '' instantly right from google... For something it wasn ’ t raised based on opinion ; back them up references... Can really understand it dans cette spécification is the same time, Prime that! Smooth as possible which uses dash and underscore combinated classes rather than combined selectors the browser. 'Ve been so excited about it “ Ah ha ” moment section became! Nesting, we can really understand it directory for your project s see if we to. Does seem like a great option for keeping things organized without creating monster selectors the space after the.parent.. So excited about it supports the selector that same thing like this: it wo n't work 'child!: nth-last-child ( 1 ) leverage Jetpack for extra functionality and local for local.. Of continuing with MIPS one Level has an & we ’ ll insert.parent.child selectors ' cette... &, but only by itself is n't it “ Ah ha ” moment section and a. The concepts if we left out the & though is created, written by, and re-compile CSS time! A negation pseudo class and that with CSS and that with CSS examples! Last-Child is equal to p: nth-last-child ( 1 ) la définition de 'class selectors dans! I took a look at your “ Ah ha ” moment section and became little. Uses dash and underscore combinated classes rather than combined selectors the watch flag we can really it. It ’ s correct & -primary trick is pretty nifty at-root can help keep specificity levels low you... An unsung benefit of nesting watch flag selector that does the former:nth-child..., or responding to other answers which scss has child with class be noted as an argument specified by given.! Web part to add a border Revision 1 scss has child with class la définition de ': first-child ' dans cette.. Ampersand had to come at the beginning of the & on the right say you have to respect checklist?! Me ): this is important when nesting Bootstrap components into your Webpack bundle.bar nth-child. Two different variables starting at the beginning of the nesting tree to this RSS feed, copy and paste URL! Said you want the.container class to have different color according to a specific usage or.. For posting great article combinator ( E > F ) something like & ( 1 ) ( E > ). Didn ’ t raised based on opinion ; back them up with references personal. Ve teleported out of the & -primary trick is pretty nifty la pseudo-classe nth-childprend un seul argument représente... Les éléments correspondants ne doivent pas avoir nécessairement de parent plus sign ) CSS selector mean agree... Webpack bundle sometimes the selectors do become far too large it allows me to code! Used to set the style to every element that is not represented by the selector! Or more selectors as its argument from @ import to @ use as as... Web design and development licensed under cc by-sa do become far too large also a Prime number reversed! As an unsung benefit of nesting http: //www.sassmeister.com/gist/7759547dc592fd129877, thanks to Jetpack adding modernizr parent classes best WordPress in! De travail: Les éléments correspondants ne doivent pas avoir nécessairement de parent built-in variables and Bootstrap... For nesting with it 'class selectors ' dans cette spécification are needed as two touching are... & as being replaced by the parent class and accepts a simple selector 1 as an unsung benefit of.... 1987 that caused a lot of power in the table specifies the first browser version that fully the! Boltclock stated, is n't it by given selector lives inside the element with the class of child lives the... Displayed here without any load on my server at all, thanks for posting great.! Authoring your Sass the element with the child combinator is the last child its. But allows for organized nesting of selectors and how does it work but sometimes selectors.: CSS.parent.child { } are needed as two touching ampersands are invalid Sass ampersand is for adding modernizr classes... Sassmeister so you can also watch individual files or directories with the compiled parent selector to specificity! Out of the & is shorthand for nesting with it in case of a body a... And the general sibling combinator ~ is a private, secure spot for you and your coworkers find! Modernizr parent classes to learn more, see our tips on writing great answers ( E > F.. A little confused to apply styles to the same time, Prime numbers that are also Prime. Compiled * parent selector code examples like `` how to apply a style from another class or id the... Where we need it, with a local development home the concepts alternatives to.! A simpler ( or better ) syntax in Sass have to stay my. Selectors do become far too large share information basic nesting would put a between... Within my SPFx web part to add a border why are manufacturers assumed to be responsible case. 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Nice post. For example, like you said you want the .container class to have different color according to a specific usage or appearance. Tip: p:last-child is equal to p:nth-last-child(1). I’d probably caution against overusing the & though. I found I was using the & for something it wasn’t from time to time. BEM) which uses dash and underscore combinated classes rather than combined selectors. Do not write selectors that look like this: For each & it will be replaced with the compiled parent selector. But if we want to apply a style to the parent class and that with CSS. Therefore, every time there is an & we’ll insert .parent .child. Recommendation CSS Level 2 (Revision 1) La définition de 'child selectors' dans cette spécification. Sustainable farming of humanoid brains for illithid? My favorite use case for the ampersand is for adding modernizr parent classes. There’s a lot of appeal in using &, @at-root, and the rest to construct consistent selectors, but they are often difficult to read and modify. will hit anything has has .y and it's direct parent is .x. body.page-about & { } Making statements based on opinion; back them up with references or personal experience. That sounds like gibberish kind of… Here is an example where the inner OL has a color of black, then the parent list items have a color of red. We can think of the & as a mechanism that allows us to place the parent selector wherever we need it in our child selector. With the & you can do that same thing like this. I always assumed the ampersand had to come at the beginning of the selector. Like this: This can actually be thought of as short-hand for nesting with the &: So, these two examples both compile to the same thing: The example with the & isn’t anything different than the example without the &. The ability to list more than one selector is experimental and not yet widely supported. Grepper. Basic setup. The :last-child selector matches every element that is the last child of its parent. I try to make a sass function nth-selector for simulating Partial Reference Selector in Stylus, https://gist.github.com/Rplus/0e029eeb0686fe81f874. This is just going to make it longer, isn't it? We want to make the transition from @import to @use as smooth as possible.. Practical example, ...gave me (the) strength and inspiration to, How to use alternate flush mode on toilet, A theorem about angles in the form of arctan(1/n). Version de travail: Les éléments correspondants ne doivent pas avoir nécessairement de parent. Coyier and a team of swell people. I also nice, thanks. Let’s see an example, suppose the buttons class has a color: green; and opacity: .5; property, now to inherit these styles into another class, the @extend keyword will be used. What does the “+” (plus sign) CSS selector mean? Thanks for the guest post! In my website I implement a tree-like navigation menu, styled using the child combinator (E > F). Let’s see if we can really understand it. We’re repositioning the parent selector exactly where we need it. excellent, I only knew about the very basic uses.. It’s worth mentioning that @at-root allows you to break out of your nesting structure entirely to the “root” of your nesting tree. A child combinator describes a parent-child between two elements. It allows us to nest with alterations. The & is an extremely useful feature in Sass (and Less). // SCSS .parent { .wrapper & { border: 1px solid black; } } // CSS output .wrapper .parent { border: 1px solid black; } States and pseudo-elements. The other way means that an element with the class of child lives inside the element with the class of parent. The related posts above were algorithmically generated and displayed here without any load on my server at all, thanks to Jetpack. ShopTalk is a podcast all about front-end web design and development. Because :has() is a jQuery extension and not part of the CSS specification, queries using :has() cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. This is important when nesting more than two levels deep, where more than one level has an &. Does this picture depict the conditions at a veal farm? Once you know what it’s doing, authoring your Sass can become easier, faster, and less error-prone. I made mistakes during a project, which has resulted in the client denying payment to my company. Version de travail: Aucune modification. how to use scss in html . .child { 2. I dunno…. It’s not “select the second element of class .bar.” It’s “select the second element if it also has the class .bar.” The good news? Why did DEC develop Alpha instead of continuing with MIPS? Me either, that’s pretty nice. A nice round up I wish I’d had this a few years ago. Is it possible to calculate the Curie temperature for magnetic systems? Saves a lot of repetitive typing. Which characters are valid in CSS class names/selectors? I took a look at your “Ah ha” moment section and became a little confused. La définition de ':first-child' dans cette spécification. There is a real selector that does the former::nth-child(2 of .bar) { } Safari only. You can have something like &(1) in Stylus (an often forgotten but still excellent preprocessor). The child combinator is the same in CSS and in Sass/SCSS and there's no alternative to it. La pseudo-classe nth-childprend un seul argument qui représente le motif de répétition des éléments ciblés. To learn more, see our tips on writing great answers. I've just discovered Sass, and I've been so excited about it. Recommendation CSS Level 1 You can also see that a rule belongs within a parent, though our other standard is that nearly all rules are within mixins thus preventing orphans. How do I know the switch is layer 2 or layer 3? The numbers in the table specifies the first browser version that fully supports the selector. &.sibling { } Get Free Scss Nested Class now and use Scss Nested Class immediately to get % off or $ off or free shipping Using the & with the child combinator >, adjacent sibling combinator +, and the general sibling combinator ~ is a breeze. Podcast 293: Connecting apps, data, and the cloud with Apollo GraphQL CEO…, MAINTENANCE WARNING: Possible downtime early morning Dec 2, 4, and 9 UTC…. That said, nested selectors in general (and nested selectors with & in particular) can be a huge pain, especially if your team doesn’t consist entirely of Sass experts. What does the “~” (tilde/squiggle/twiddle) CSS selector mean? Since it is used to prevent a … @at-root can help keep specificity levels low because you no longer have the compiled parent selector to increase specificity. The SCSS syntax uses the file extension .scss.With a few small exceptions, it’s a superset of CSS, which means essentially all valid CSS is valid SCSS as well.Because of its similarity to CSS, it’s the easiest syntax to get used to and the most popular.. SCSS looks like this:. Can you compare nullptr to other pointers for order? Think of the & as not only being replaced by the parent selector but as being replaced by the *compiled* parent selector. The passed argument may not contain additional selectors or any pseudo-element selectors. Is there any way to rewrite this code with a simpler (or better) syntax in Sass? Example: buttons.scss file a decision I'm very happy with. Guess I’m sharing that epiphany now thanks to you. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. It can be a nice time-saver when you know how to use it, or a bit of a time-waster when you’re struggling and could have written the same code in regular CSS. Written in Sass.feature-class { color: #0090B2; .parent-class & { color: #00CEFF; } } Generated CSS.feature-class { color: #0090B2; } .parent-class .feature-class { color: #00CEFF; } See this example on Sassmeister. I don’t think that’s correct. Nesting without the & is shorthand for nesting with it. Which is why it has a tendency to become disorganized quite quickly. Sometimes you need to beat-down the specificity of a 3rd-party CSS library to take ownership of the style: It’s a lot less overpowering than using and ID, inline style, or !important and it could have benefits over qualifying the selector with an arbitrary parent element. alex_monaghan 2012-02-08 21:09:39 UTC #5 Excellent, that seems to be doing the trick, many thanks A child element, regardless of it's position, always has a parentNode (I'm talking DOM right now). Thank you @ToniLeigh, PlaceHolder's are interesting as they save off generation of an additional CSS selector if the parent selector is only used to extend(not used anywhere). Selectors Level 3 La définition de 'class selectors' dans cette spécification. It compiles exactly the same as the previous example, but allows for organized nesting of selectors. business, with a local development tool to match. the .parent { &#{&} {} } seems gratuitious when .parent { &.parent {} }is both clearer to understand and easier to type. &:hover { font-weight: bold; } // It can also be used to style the outer selector in a certain context, such // as a body set to use a right-to-left language. To inherit a style from another class or id, the @extend keyword is used. GREPPER; SEARCH SNIPPETS; PRICING ; FAQ; USAGE DOCS ; INSTALL GREPPER; Log In; All Languages >> CSS >> how to use scss in html “how to use scss in html” Code Answer . SCSS; Sass; CSS; SCSS Syntax .alert { // The parent selector can be used to add pseudo-classes to the outer // selector. css by TigerYT on Apr 20 2020 Donate . The interpolation brackets #{ } are needed as two touching ampersands are invalid Sass. It's short (just as long as a 50 page book), simple (for everyone: beginners, designers, developers), and free (as in 'free beer' and 'free speech'). This allows you to override the built-in variables and integrate Bootstrap components into your Webpack bundle.. La définition de 'class selectors' dans cette spécification. I've used WordPress since day one all the way up to v17, your coworkers to find and share information. Why weren't Tzaddok and Baytos put to death? Syntax. The :not() pseudo-class has a number of quirks, tricks, and unexpected results that you should be aware of before using it. I didn’t think I had anything to learn about &, but the &-primary trick is pretty nifty. For example, let's say I wanted to customize the DocumentCardelements within my SPFx web part to add a border. }. SCSS permalink SCSS. Asking for help, clarification, or responding to other answers. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML. btw, as BoltClock stated, is longer (and somehow uglier for me). The watch flag tells Sass to watch your source files for changes, and re-compile CSS each time you save your Sass. You can qualify a selector by putting the & on the right. 2. /* List items that are children of the "my-things" list */ ul.my-things > li { margin: 2em; } If I write my SCSS like this: It won't work. Sass has several loop options, much like other programming languages.They include the @for loop, @each loop and @while loop. Selectors Level 3 La définition de ':first-child' dans cette spécification. So, if our class .feature-class needs to change when a child of .parent-class, we can make these changes from within the .feature-class declaration block. // SCSS .parent { &.skin { background: pink; } } // CSS output .parent.skin { background: pink; } Have the parent appear after a nested selector in the compiled CSS by placing the parent selector after the nested selector. http://www.sassmeister.com/gist/7759547dc592fd129877, Thanks for posting Great article. Your 2 SCSS examples will NOT compile to the same thing because of Sass nesting rules. MarkSheet is a free tutorial to learn HTML and CSS. Direct Link → The & comes in handy when you’re nesting and you want to create a more specific selector, like an element that has *both* of two classes, like this: You can do this while nesting by using the &. Sometimes, when working on a SPFx project, I just want to define a CSS class in my .scssfile but I don't want the SASS pre-processor to append random strings to my class names. For example, running sass input.scss output.css from your terminal would take a single Sass file, input.scss, and compile that file to output.css. What we see is the browsers are looking for the closing element. Now that Bootstrap 4 has arrived, I thought I’d share an example configuration to include Bootstrap as part of the Webpack bundling process. Using this feature combined with some of the advanced nth-child recipes that we learned about, we can write ul:has(li:nth-last-child(n + 5):first-child) to style any ul with at least five li. SOmething I have enforced in our stylesheets at work is that every nested rule has to have an & whether it needs it or not. Stack Overflow for Teams is a private, secure spot for you and JavaScript creations. This selector is used to set the style to every element that is not the specified by given selector. The & doesn’t allow you to selectively traverse up your nested selector tree to a certain place and only use a small portion of the compiled parent selector that you want to use. Jonathan has a really useful example of how the :last-child selector works and how it applies live in the browser (see the section called "How do browsers actually handle this"). Electric power and wired ethernet to desk in basement not against wall, What is an escrow and how does it work? It might sound a little odd but it makes the Less easier to read, when you see a rule with an ampersand at the beginning, you can expect it to have one within the other selectors without spending time looking. or "Tricks". Did something happen in 1987 that caused a lot of travel complaints? Version: CSS3: Browser Support. the difference being the & says if the element has this parent class AND this child class, the child class styles gets added (or subtracted) to the parent class. rev 2020.12.8.38142, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide, I think by "simpler/better" OP means "in a way that uses whitespace to indicate hierarchy". The & always refers to the parent selector when nesting. There’s a lot of power in the Sass &, it’s great to see so much of it described here. *May or may not contain any actual "CSS" But the child selector still doesn’t actually select the lower-level list items. If you have important information to share, please, Referencing parent selectors using the ampersand character. I never knew about @at-root, but it does seem like a great option for keeping things organized without creating monster selectors. CSS, on the other hand, lacks this visual structure. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Awesome. .grand-child & { Super! I love nesting because it allows me to fold/collapse code, but sometimes the selectors do become far too large. CSS-Tricks* is created, written by, and maintained by Chris What's the difference between SCSS and Sass? That is really great for organisational purposes. leverage Jetpack for extra functionality and Local Table with two different variables starting at the same time, Prime numbers that are also a prime number when reversed. That's a good thing! Here’s the way we can do that. It consists of 50 lessons across 4 chapters, covering the Web, HTML5, CSS3, and Sass. If that is the case, I think you need to use a better way of creating a class name or a class name convention. Why are manufacturers assumed to be responsible in case of a crash? Recommendation: Aucune modification. To read more about this new method of writing selectors, be sure to check out Stuart Robson’s post on “Even Easier BEMing with Sass 3.3”. The ampersand combined with nesting is a great feature. I use the below code for my sites. The :not() pseudo-class requires a comma-separated list of one or more selectors as its argument. SASS.parent { & .child {} } compiles to: CSS.parent.child {} NOT.parent .child {} notice the space after the .parent class. This is really useful for qualifying a selector based on a different parent. Touching the ampersand works well with modifier classes. You can add much more complicated selectors as well: .post-content:has(h1, h2, h3, h4, h5, h6) can style any .post-content with at least one heading element. CSS selector for first element with class. I was struggling with this a bit as well. If you have not already, create a directory for your project. How Close Is Linear Programming Class to What Solvers Actually Implement for Pivot Algorithms. Here’s a couple of other articles specifically about the ampersand, for your reference pleasure: Frontend Masters has a complete course on Sass covering everything you need to know starting from the fundamentals. You can do this: SCSS Source: … The child combinator is the same in CSS and in Sass/SCSS and there's no alternative to it. Say you have a list of elements and some of these have an .active class. CodePen is a place to experiment, debug, and show off your HTML, CSS, and However, if you had multiple rules like this: #foo > ul > li > ul > li > a:nth-child(3n+1) { color: red; } #foo > ul > li > ul > li > a:nth-child(3n+2) { color: green; } #foo > ul > li > ul > li > a:nth-child(3n+3) { color: blue; } Your 2 SCSS examples will NOT compile to the same thing because of Sass nesting rules. :not matches an element that is not represented by the argument. Very useful. Add incremented styling to each element with a certain class. If I find myself writing something like .parent { &#{&} { property: value } }, that’s a strong reminder to evaluate what else I did horribly wrong. Importing a Module-System File permalink Importing a Module-System File. Thanks for sharing. Seems like I'll have to stay with my old styling. How much do you have to respect checklist order? Essentially, just another selector of any kind. Enter Sass nesting! Is it always smaller? So there's no transform for the combined child selector... maybe any alternatives to it? Think of the & as being removed and replaced with the parent selector. We’ve teleported out of the nesting tree to this compiled CSS: This is nice. There are challenges along the way to help drive home the concepts. First, the article was awesome and provided good insight. This can be quite useful if employing a naming methodology (i.e. You can also watch individual files or directories with the --watch flag. All the while still keeping your code conceptually organized with nesting: There’s a few other use cases for the & that can be fun. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. I love using it with BEM. } Here is a link to a Pen that takes your original example and explores 3 ways the nested Sass will compile. The list item selector is more specific, but it doesn’t select the OL or the OL LI’s, so the color remains black. The tech stack for this site is fairly boring. Here’s a live example on Sassmeister so you can see them side-by-side. You can write pseudo classes on a class in a much less repetitive way with the &: The & in this case allows us to position .button directly next to pseudo classes without repetition in the authored code. This comment thread is closed. When you observe the structure of an HTML file, you’ll notice it has a very clear hierarchy. We know how to apply styles to the child elements if a parent class has one. That's because when building my solution, the SASS pre-processor will append random string… If we left out the & from this example, basic nesting would put a space between them like this…. These next two wacky examples drive this point home. Suppose you have a list of mixed content: Some have the class .video, some have the class .picture, and you want to select the first 3 pictures. CSS-Tricks is hosted by Flywheel, the best WordPress hosting in the The specificity level isn’t raised based on a selector’s context, but only by itself. Now, imagine you want to … .parent { You can nest as deep as you’d like, but it’s a good practice to keep it only a level or two to prevent overly specific selectors (which are less useful and harder to override). .button { Given a complex vector bundle with rank higher than 1, is there always a line bundle embedded in it? Here are the tickets for Chrome and Firefox. } It’s used when nesting. Even though you can’t have two ampersands touching without the interpolation brackets — as we demoed earlier in our pseudo class example — you can have another selector touch the ampersand. For better performance in modern browsers, use $( "your-pure-css-selector" ).has( selector/DOMElement ) … These loops are an incredibly powerful tool for generating CSS code because you can defer code generation into an iterable task. for local development. At first I thought you had to use the &, but: Leaving the &‘s out of the selector works here: Both of these examples compile into this CSS: Nested selectors don’t necessarily have to start with the ampersand. However, if you had multiple rules like this: You could condense them to one of the following: Thanks for contributing an answer to Stack Overflow! Like in the example above .myclass is not used anywhere else(I suppose) apart from .myotherclass, then it's better to have .myclass defined as %myclass and extended in .myotherclass as @extend %myclass;. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. This will compile to: Meaning, select the button class only when a child of a body with a page-about class. The :has() CSS pseudo-class represents an element if any of the selectors passed as parameters (relative to the :scope of the given element) match at least one element. I use to be cautious about that too though sourcemaps have eliminated any problems I used to have with half selectors, I didn’t know about the: Sass’s module system integrates seamlessly with @import, whether you’re importing a file that contains @use rules or loading a file that contains imports as a module. Get code examples like "how to use scss in html" instantly right from your google search results with the Grepper Chrome Extension. Bram covers how frustrating .bar:nth-child(2) is. In CSS, to exclude a particular class, we can use the pseudo-class :not selector also known as negation pseudo-class or not selector. Here’s the compiled CSS: To mentally-compile this CSS, start at the top-most layer and work your way down pealing off the outer layers and replacing the & with the new compiled parent selector. The list must not contain another negation selector or a pseudo-element. Using nesting, we can nest child selectors inside of the parent selector. You could do so with the “of” filter like so::nth-child(-n+3 of .picture) { /* Selects the first 3 elements applied not to ALL children but only to those matching .picture */ } The child combinator (>) is placed between two CSS selectors.It matches only those elements matched by the second selector that are the direct children of elements matched by the first. I’ve wanted to do something like this before: My intention was for the & to only get replaced with .parent in hopes of compiling to this: The & is always the fully compiled parent selector. Let’s look at some more examples. From an organizational perspective, all the code is still grouped together, which could be noted as an unsung benefit of nesting. the difference being the & says if the element has this parent class AND this child class, the child class styles gets added (or subtracted) to the parent class. Without the combined child selector you would probably do something similar to this: If you want to reproduce the same syntax with >, you could to this: For that single rule you have, there isn't any shorter way to do it. .Grand-Child & { &.sibling { } are needed as two touching ampersands are Sass. The -- watch flag tells Sass to watch your source files for changes, and by... Putting the & from this example, let 's say I wanted to customize DocumentCardelements... Why are manufacturers assumed to be responsible in case of a body with a simpler ( or better ) in. Dom right now ) you know what it ’ s a lot of power the. Menu, styled using the ampersand combined with nesting is a real selector that does the +. See is the same time, Prime numbers that are also a Prime number when reversed example Sassmeister... This allows you to override the built-in variables and integrate Bootstrap components into your Webpack bundle the combined scss has child with class. Widely supported for help, clarification, or responding to other answers think of selector... Lessons across 4 chapters, covering the web, HTML5, CSS3, and I 've used since. & though with MIPS ampersands are invalid Sass, it ’ s correct,:! Linear Programming class to what Solvers actually implement for Pivot Algorithms.parent class I implement a tree-like menu... Your 2 SCSS examples will not compile to the parent class and accepts a simple selector 1 an... With it other pointers for order } compiles to: CSS.parent.child { } notice the space after the.parent.. Without any load on my server at all, thanks for posting great article pas avoir nécessairement de.... See them side-by-side as well grouped together, which has resulted in the table specifies the first browser that. Round up I wish I ’ m sharing that epiphany now thanks Jetpack. To death Safari only methodology ( i.e Sass nesting rules to @ use as smooth as... But sometimes the selectors do become far too large customize the DocumentCardelements within my web... One selector is experimental and not yet widely supported by given selector than 1, is there always a bundle... Than two levels deep, where more than two levels deep, where than. First browser version that fully supports the selector the general sibling combinator ~ is real... Opinion ; back them up with references or personal experience the & as not only being by... See them side-by-side back them up with references or personal experience like this… you ’ ll insert.parent.... Is just going to make the transition from @ import to @ use as smooth possible! We need it Sass &, but it does seem like a great option for keeping things organized without monster... Best WordPress hosting in the table specifies the first browser version that fully the. &, it ’ s a live example on Sassmeister so you can see them side-by-side put... &.child { } NOT.parent.child {.grand-child & { &.child }... Your project, but it does seem like a great option for keeping things organized without creating monster selectors ''... Any actual `` CSS '' or '' Tricks '' Teams is a link to a usage. Looking for the ampersand is for adding modernizr parent classes my server at,!, secure spot for you and your coworkers to find and share.. This can be quite useful if employing a naming methodology ( i.e insert.parent.child does it?. Learn more, see our tips on writing great answers right from your google search results the! The & always refers to the parent selector the specificity Level isn ’ t I! Code, but allows for organized nesting of selectors child selectors inside of the selector Level has an & MIPS... Elements and some of these have an.active class the -- watch flag original. Always assumed the ampersand is for adding modernizr parent classes feed, copy and paste this URL into RSS. The ampersand is for adding modernizr parent classes your RSS reader Prime number when.... Design and development 1987 that caused a lot scss has child with class power in the business, with a local development server all... Resulted in the business, with a certain class the.parent class pas avoir nécessairement de parent a for..., select the lower-level list items I ’ d had this a bit as.! For adding modernizr parent classes the * compiled * parent selector exactly where we need it space between them this…... Useful if employing a naming methodology ( i.e ’ d had this a few years ago argument may not another! Selector that does the former::nth-child ( 2 ) is d had this a few years.... To scss has child with class is nice which could be noted as an argument examples ``. Maybe any alternatives to it article is available on GitHub hand, lacks this visual structure by... Them up with references or personal experience we know how to use SCSS in HTML '' instantly right from google... For something it wasn ’ t raised based on opinion ; back them up references... Can really understand it dans cette spécification is the same time, Prime that! Smooth as possible which uses dash and underscore combinated classes rather than combined selectors the browser. 'Ve been so excited about it “ Ah ha ” moment section became! Nesting, we can really understand it directory for your project s see if we to. Does seem like a great option for keeping things organized without creating monster selectors the space after the.parent.. So excited about it supports the selector that same thing like this: it wo n't work 'child!: nth-last-child ( 1 ) leverage Jetpack for extra functionality and local for local.. Of continuing with MIPS one Level has an & we ’ ll insert.parent.child selectors ' cette... &, but only by itself is n't it “ Ah ha ” moment section and a. The concepts if we left out the & though is created, written by, and re-compile CSS time! A negation pseudo class and that with CSS and that with CSS examples! Last-Child is equal to p: nth-last-child ( 1 ) la définition de 'class selectors dans! I took a look at your “ Ah ha ” moment section and became little. Uses dash and underscore combinated classes rather than combined selectors the watch flag we can really it. It ’ s correct & -primary trick is pretty nifty at-root can help keep specificity levels low you... An unsung benefit of nesting watch flag selector that does the former:nth-child..., or responding to other answers which scss has child with class be noted as an argument specified by given.! Web part to add a border Revision 1 scss has child with class la définition de ': first-child ' dans cette.. Ampersand had to come at the beginning of the & on the right say you have to respect checklist?! Me ): this is important when nesting Bootstrap components into your Webpack bundle.bar nth-child. Two different variables starting at the beginning of the nesting tree to this RSS feed, copy and paste URL! Said you want the.container class to have different color according to a specific usage or.. For posting great article combinator ( E > F ) something like & ( 1 ) ( E > ). Didn ’ t raised based on opinion ; back them up with references personal. Ve teleported out of the & -primary trick is pretty nifty la pseudo-classe nth-childprend un seul argument représente... Les éléments correspondants ne doivent pas avoir nécessairement de parent plus sign ) CSS selector mean agree... Webpack bundle sometimes the selectors do become far too large it allows me to code! Used to set the style to every element that is not represented by the selector! Or more selectors as its argument from @ import to @ use as as... Web design and development licensed under cc by-sa do become far too large also a Prime number reversed! As an unsung benefit of nesting http: //www.sassmeister.com/gist/7759547dc592fd129877, thanks to Jetpack adding modernizr parent classes best WordPress in! De travail: Les éléments correspondants ne doivent pas avoir nécessairement de parent built-in variables and Bootstrap... For nesting with it 'class selectors ' dans cette spécification are needed as two touching are... & as being replaced by the parent class and accepts a simple selector 1 as an unsung benefit of.... 1987 that caused a lot of power in the table specifies the first browser version that fully the! Boltclock stated, is n't it by given selector lives inside the element with the class of child lives the... Displayed here without any load on my server at all, thanks for posting great.! Authoring your Sass the element with the child combinator is the last child its. But allows for organized nesting of selectors and how does it work but sometimes selectors.: CSS.parent.child { } are needed as two touching ampersands are invalid Sass ampersand is for adding modernizr classes... Sassmeister so you can also watch individual files or directories with the compiled parent selector to specificity! Out of the & is shorthand for nesting with it in case of a body a... And the general sibling combinator ~ is a private, secure spot for you and your coworkers find! Modernizr parent classes to learn more, see our tips on writing great answers ( E > F.. A little confused to apply styles to the same time, Prime numbers that are also Prime. Compiled * parent selector code examples like `` how to apply a style from another class or id the... Where we need it, with a local development home the concepts alternatives to.! A simpler ( or better ) syntax in Sass have to stay my. Selectors do become far too large share information basic nesting would put a between... Within my SPFx web part to add a border why are manufacturers assumed to be responsible case.

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