This is a web page to demonstrate how to use CSS

Some text here.

The amount of space above and below a <h2> and </h2> has been set.

This page was made to look this way by putting the following between the <head> and </head> tags:

<style type="text/css">
 h2 { margin-top: 40px ; margin-bottom: 80px ; }
</style>

"em" means that it scales with the text size.