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Sass: Defining a Mixin

The @mixin directive defines the mixins. It is used to include optionally the variables and arguments after the name of the mixin.

Let’s take an example to demonstrate how to define a mixin. Here, we take an HTML file named “simple.html”, having the following code.

Take a SCSS file name “simple.scss”, having the following code:

Open command prompt and run the watch command to tell SASS to watch the file and update the CSS whenever SASS file is changed.

sass –watch simple.scss:simple.css

After executing the above command, it will create a CSS file named “simple.css” file automatically with the following code.

You can see the automatically created CSS file.

Output:

See the output after applying the CSS.