A style sheet was used to make this web page. They are fairly new however, and aren't well supported in browsers older than fourth generation.
Style sheets are blocks of text that give very specific definitions to text formats.
Settings such as distance between lines and margin size can also be set. One popular use of stylesheets is make links that are not underlined. One of the greatest advantages to style sheets is in the way they are linked. A style sheet can reside in a file by itself, and all web pages using the style sheet can just link to it. An interesting effect of CSS is the way text is drawn.