In a nutshell, the rules of a style sheet consist of selectors and declarations.

Let's start with selectors, which can select HTML elements based on their types, IDs, classes and more.

Nice! This selector, for example, finds every HTML element with the same tag on the web page and changes its font family to "Lucida Grande".

Psst: anything we write between /* and */ is considered as a comment and has no effects on the style sheet.

Shouldn't we select an HTML element that's actually present on the web page?