What is Sass ? how to use it and compile ?

Sass stands for Syntactically Awesome Style Sheets. It is a CSS preprocessor.  A preprocessor is a program that takes one type of data and converts it to another type of data with the help of a compiler.  

What is Compiler ?

The browser which understands the css but the Sass is written defining variables, nested, mixin etc. which can't understand by browser and here comes the compiler which process the Sass to Css.

The extension is .scss (example style.scss)

 

How to compile ?

There are many tools for compiling the Sass which are paid and free.

How to use it ?

Using is pretty easy way. See the Sass Documentation for additional references and examples.

Let me few examples in writing the Sass.