Sass - Passing Content Blocks to a Mixin

Description

Block of styles is passed to the mixin for the placement inside the styles. In @content directive location, styles gets included into the mixin.

Variable Scope and Content Blocks

The block of content is evaluated in the scope, which is passed to a mixin where block is defined.

Example

The following example demonstrates the use of passing content blocks to mixin in the SCSS file −

pass_content.htm

<html>
   <head>
      <title>Mixin example of sass</title>
      <link rel = "stylesheet" type = "text/css" href = "sample.css"/>
   </head>
   
   <body>
      <div class = "block">
         <h1>Example using passing content blocks</h1>
         <p>Different Colors</p>
         <ul>
            <li>Red</li>
            <li>Green</li>
            <li>Blue</li>
         </ul>
      </div>
   </body>
</html>

Next, create file sample.scss.

sample.scss

@mixin element {
   @content;
}

@include element {
   .block {
      color: green;
   }
}

You can tell SASS to watch the file and update the CSS whenever SASS file changes, by using the following command −

sass --watch C:\ruby\lib\sass\sample.scss:sample.css

Next, execute the above command; it will create the sample.css file automatically with the following code −

sample.css

.block {
   color: green;
}

Output

Let us carry out the following steps to see how the above given code works −

Save the above given html code in pass_content.scss file.
Open this HTML file in a browser, an output is displayed as shown below.

sass_mixin_directives.htm