Understanding how browsers parse CSS and render websites is an important first step towards writing more efficient code. In this first piece on efficient CSS, we look at selectors, how the browser ...

If a page had dozens of <p> tags, all would be affected by the styles defined in a <p> element selector. ID selectors target specific HTML tags that have the specified ID defined as an attribute.

If you haven't checked out CSS, understanding the most often used core selectors is a good place to start.