Instead, it utilises a HTML list (with HTML text for the list item content, meaning the text can be zoomed), plus CSS for styles, including background images.

Before CSS was in wide use, font styles had to be hard-coded into a page. Every time you wanted to format a given range of text, you had to repeat the same HTML tags. It was tedious to compose.

Is your webpage loading slowly? Cascading style sheets may be the problem. Here are five CSS performance optimization tips to help solve your performance bottlenecks.