| Tag | Description | Replacement |
|---|---|---|
| <applet> | Inserts applet | <object> |
| <b> | Emboldens text | <strong> for especially important words |
| <b> is OK for stylistic purposes to show keywords without marking them as more important than the surrounding text. | ||
| <basefont> | Sets font styles for subsequent text | CSS (color, font-size, font-family, font, etc.) |
| <center> | Centers elements on the page. | CSS |
| <dir> | Directory list | <ul> or <ol> or <dl> |
| <embed /> | Embeds media | <param /> |
| <font> | Applies font styles | CSS |
| <i> | Italicizes text | <em> for emphasis <cite> for publications |
| <i> is OK to italicize, for instance, foreign words without marking them as more important than the surrounding text. | ||
| <iframe> | Inline frame | absent from XHTML 1.0 strict. |
| allowed in transitional, but not recommended. | ||
| <isindex> | Single line prompt | <form> and scripting |
| <menu> | Menu item list | <ul> or <ol> |
| <s> | Strike-through text | CSS |
| <strike> | Strike-through text | CSS |
| <u> | Underlined text | CSS |
Adapted for XHTML 1.0 from:
Index of Elements,HTML 4.01 Specification (24 December 1999), at http://www.w3.org/TR/html4/index/elements.html.