BBCode tags let you format text in your profile and message-board postings. It's similar to HTML, but simpler. The tags start with a [ (where you would have used < in HTML) and end with ] (where you would have used > in HTML).

Examples:

• [b]Bold[/b] to Bold
• [i]Italic[/i] to Italic
• [u]Underline[/u] to Underline
• [size=20]Absolute size[/size] to Absolute size (in pixels)
• [size=+1]Relative size[/size] to Relative size (from -7 to +7) (this is prefered!)
• [color=red]Red text[/color] to produce Red text
• [url=http://google.com/]Google[/url] links to Google
• [quote]Quoted[/quote] for quoted blocks of text
• [quote=someone]Quoted[/quote] for quoted blocks of text, citing quoted author
• [img]http://some.web.site/pic.jpg[/img] to display an image
• [code]Code snippet here[/code] to display some code
• [pre]Pre-formatted text here[/pre] to display some pre-formatted text
• [[Term]] link to a term defined in the Library (our wiki)
• [[w:Term]] link to a term defined in the Wikipedia
• [[bz:280]] links to Bug 280 in our Bugzilla.

Lists are also possible:
[list]
*Item 1
*Item 2
[/list] to:

• Item 1
• Item 2

If you don't close a tag or don't specify a parameter correctly, the raw tag itself will display instead of the formatted text.