What are the uses of Less and Sass?

Less and Sass are both CSS preprocessors that can enhance the functionality of CSS and provide a more flexible way to write styles.

The usage of “Less”:

1. Install Less by using the npm command or by directly downloading the Less compiler.
2. Write Less code: use the syntax of Less to write styles, which allows for the use of variables, nesting, mixins, and other functions.
3. Compile Less: Use a Less compiler to convert Less code into CSS code.
4. Introduce CSS: Include the compiled CSS file in the HTML document.

How to use Sass:

1. Install Sass: Use the npm command to install Sass, or simply download the Sass compiler.
2. Write Sass code: Use Sass syntax to write styles, incorporating features such as variables, nesting, and mixins. Sass has two syntax formats, which are indent-style and SCSS.
3. Compile Sass: Use a Sass compiler to change Sass code into CSS code.
4. Introducing CSS: include the compiled CSS file in the HTML document.

In summary, both Less and Sass are used by writing preprocessor code, compiling it into CSS code, and then including the generated CSS file in HTML files. The main difference between them lies in their syntax style – Less uses a CSS-like syntax while Sass has its own format.