| Attribute | HTML4.01 | XHTML1.0 | XHTML | Value | ||||
| S | T | F | S | T | F | 1.1 | ||
| align | × | ▲ | ▲ | × | ▲ | ▲ | × | 位置 |
| id | ● | ● | ● | ● | ● | ● | ● | 固有の拡張子 |
| class | ● | ● | ● | ● | ● | ● | ● | 分類名 |
| title | ● | ● | ● | ● | ● | ● | ● | 文字列 |
| style | ● | ● | ● | ● | ● | ● | × | CSS |
子要素として持てる要素は、インラインレベル要素のみ
| Attribute | HTML4.01 | XHTML1.0 | XHTML | Value | ||||
| S | T | F | S | T | F | 1.1 | ||
| name | ● | ● | ● | ● | ● | ● | ● | 名前 |
| value | ● | ● | ● | ● | ● | ● | ● | 値 |
| valuetype | ● | ● | ● | ● | ● | ● | ● | 値のタイプ |
| type | ● | ● | ● | ● | ● | ● | ● | MIMEタイプ |
| id | ● | ● | ● | ● | ● | ● | ● | 固有の拡張子 |
子要素として持てる要素はありません。
| Attribute | HTML4.01 | XHTML1.0 | XHTML | Value | ||||
| S | T | F | S | T | F | 1.1 | ||
| width | × | ▲ | ▲ | × | ▲ | ▲ | × | 長さ |
| id | ● | ● | ● | ● | ● | ● | ● | 固有の拡張子 |
| class | ● | ● | ● | ● | ● | ● | ● | 分類名 |
| title | ● | ● | ● | ● | ● | ● | ● | 文字列 |
| style | ● | ● | ● | ● | ● | ● | × | CSS |
子要素として持てる要素は、インラインレベル要素のみ