Missing features

• I believe that every tag defined in HTML/2.0 that affects markup is handled by the library. with the exception of listing and xmp which are deprecated, and should never be used.
• Some html tags, such as link or base aren't used for rendering, so the library doesn't deal with them.

Bugs

• Sometimes too much white space gets added between tags.
• On some systems, fonts take a very long time to load the first time they are referenced, which slows down the viewer until they are cached.
• The definition terms <dt> can't contain embedded markup.
• HTML comments with embedded tags are not handled properly.
• The use of unencoded ">" or "<" characters inside of parameter lists is prohibited, as it conflicts with the common (and unfortunate) convention of forgetting the closing quote in parameter values.