Tutorials References Exercises Videos NEW Menu
Paid Courses Website NEW

Sass Nested Rules and Properties


Sass Nested Rules

Sass lets you nest CSS selectors in the same way as HTML.

Look at an example of some Sass code for a site's navigation:

Example

SCSS Syntax:

nav {
  ul {
    margin: 0;
    padding: 0;
    list-style: none;
  }
  li {
    display: inline-block;
  }
  a {
    display: block;
    padding: 6px 12px;
    text-decoration: none;
  }
}

Run Example »

Notice that in Sass, the ul, li, and a selectors are nested inside the nav selector.

While in CSS, the rules are defined one by one (not nested):

CSS Syntax:

nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
nav li {
  display: inline-block;
}
nav a {
  display: block;
  padding: 6px 12px;
  text-decoration: none;
}

Because you can nest properties in Sass, it is cleaner and easier to read than standard CSS.



Sass Nested Properties

Many CSS properties have the same prefix, like font-family, font-size and font-weight or text-align, text-transform and text-overflow.

With Sass you can write them as nested properties:

Example

SCSS Syntax:

font: {
  family: Helvetica, sans-serif;
  size: 18px;
  weight: bold;
}

text: {
  align: center;
  transform: lowercase;
  overflow: hidden;
}

The Sass transpiler will convert the above to normal CSS:

CSS Output:

font-family: Helvetica, sans-serif;
font-size: 18px;
font-weight: bold;

text-align: center;
text-transform: lowercase;
text-overflow: hidden;