Tutorial

Nesting Selectors in Sass

Published on September 19, 2016
    author

    Alligator.io

    Nesting Selectors in Sass

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    Sass allows you to easily nest your selectors and organize your rules hierarchically:

    .main {
      background-color: antiquewhite;
      margin: 0 auto;
    
      img {
        max-width: 100%;
        transform: rotate(3deg);
      }
      p:first-child {
        font-size: 1.2em;
    span {
      background-color: burlywood;
      padding: 0.2em 0.4em;
    }
    

    The above, once compiled to CSS, would yield the following:

    .main {
      background-color: antiquewhite;
      margin: 0 auto;
    }
    .main img {
      max-width: 100%;
      transform: rotate(3deg);
    }
    .main p:first-child {
      font-size: 1.2em;
    }
    .main p:first-child span {
      background-color: burlywood;
      padding: 0.2em 0.4em;
    }
    

    Properties in the same namespace

    You can also nest properties that are in the same namespace. For example, background properties can be nested like this. Notice the use of a colon after the background keyword in the example:

    .main {
      margin: 0 auto;
    
    
    

    This would yield the following CSS:

    .main {
      margin: 0 auto;
      background-color: antiquewhite;
      background-image: url(images/gator.svg);
      background-repeat: repeat-x;
      background-size: 36px 48px;
    }
    

    👉 Over-nesting can create messy CSS, so keep it at a maximum of just a few levels deep.

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    About the authors
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    Alligator.io

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