| background | Text.XHtml.Transitional, Text.XHtml |
| base | Text.XHtml.Strict, Text.XHtml.Frameset, Text.XHtml.Transitional, Text.XHtml |
| basefont | Text.XHtml.Transitional, Text.XHtml |
| bdo | Text.XHtml.Strict, Text.XHtml.Frameset, Text.XHtml.Transitional, Text.XHtml |
| beside | Text.XHtml.Table, Text.XHtml |
| besides | Text.XHtml.Table, Text.XHtml |
| bgcolor | Text.XHtml.Transitional, Text.XHtml |
| big | Text.XHtml.Strict, Text.XHtml.Frameset, Text.XHtml.Transitional, Text.XHtml |
| black | Text.XHtml.Transitional, Text.XHtml |
| blockquote | Text.XHtml.Strict, Text.XHtml.Frameset, Text.XHtml.Transitional, Text.XHtml |
| blue | Text.XHtml.Transitional, Text.XHtml |
| body | Text.XHtml.Strict, Text.XHtml.Frameset, Text.XHtml.Transitional, Text.XHtml |
| bold | Text.XHtml.Strict, Text.XHtml.Frameset, Text.XHtml.Transitional, Text.XHtml |
| border | Text.XHtml.Strict, Text.XHtml.Frameset, Text.XHtml.Transitional, Text.XHtml |
| bordercolor | Text.XHtml.Strict, Text.XHtml.Frameset, Text.XHtml.Transitional, Text.XHtml |
| br | Text.XHtml.Strict, Text.XHtml.Frameset, Text.XHtml.Transitional, Text.XHtml |
| bullet | Text.XHtml.Strict, Text.XHtml.Frameset, Text.XHtml.Transitional, Text.XHtml |
| button | Text.XHtml.Strict, Text.XHtml.Frameset, Text.XHtml.Transitional, Text.XHtml |