Originally published at: http://www.sitepoint.com/sass-basics-operators/
Sass is quite popular and tends to be an essential tool for every front-end developer. Sitepoint has already published some introductory articles about this CSS preprocessor language.
In this article, we’ll continue exploring Sass by diving into its operations.
Note: The examples will be based on Ruby Sass. I also suggest you to have a look at Hugo’s article, which discusses Sass-Compatibility.
Assignment Operator
Sass uses the colon (:) operator to define a variable. For instance:
$main-color: lightgray;
Arithmetic Operators
Arithmetic operators are used to perform the standard arithmetic operations.
Here are the arithmetic operators that Sass supports:
As we’ll see in an upcoming section, the addition operator (+) can also be used to concatenate strings.
Note that the operators above work only for numbers with compatible units:
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