< and > are not tags, they are character entities. You can find a good list of named HTML 4 entities here. (I don’t know if that’s all of them.) You can use entity syntax to represent any Unicode codepoint with “&#xNNNN;” where NNNN is the codepoint value in hex.
“Hover” and “visited” are possible CSS pseudoclasses for specifying display behavior for various types of HTML elements like <a> tags. There is a <link> tag as well which is used to associate other URLs with the current one; the main use is for including CSS stylesheets and RSS feeds.
Thanks for the unicode lesson. Do you happen to know what prefix to use for BB Code? I looked it up and think it was just and ampersand, but that didn’t seem to work here. I guess not all of the features of BB code are implemented here. I had the same problem trying to create a table with the td, tr and tc (??) codes. Thanks.