In this post I want to illustrate some useful guidelines about how to implement a well organized CSS code structure in view of introduction of HTML 5 markup language. They are not general rules but simple suggestions you can follow in order to improve the readability, manageability, and general organization of CSS code. These suggestions are especially useful if you have to work on complex CSS files that otherwise can be difficult to manage.


I prefer to separate CSS code in three distinct sections: a first section that contains general HTML tags; a second section that contains structure tags; a last section with custom classes.

Section 1: General HTML tags
In this section I divide the code in two subsections. A first subsection that contains code to reset HTML standard tags and a second subsection that contains code to redefine HTML standard tags.