Some tags have associated attributes--additional options that
let you further customize the effect of the tag.
For example, the <BODY> tag can also set the background color
for your page using the attribute BGCOLOR.
Some attributes can stand alone.
For example, the <HR> tag used for specifying a horizontal rule (line)
can take the attribute NOSHADE.
http://www.projectcool.com/developer/reference/tag-table.html for a
wonderful summary of the basic HTML tags.
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