Here, we will learn about the best tips to learn CSS. It is a styling language, not a programming language like PHP. If you have some knowledge of HTML, then you can learn it easily. It is used for styling of the webpage. For learning CSS you have to know the format of it.
The easy thing to do in it is to set the new font style. In this you can change the font color, font and font style with the basic command.
In the installation of the WordPress, when you see any file is ends with the .css extension.

For more info:
https://www.wpglobalsupport.com/5-best-tips-for-learning-css/