📅  最后修改于: 2020-11-03 03:32:06             🧑  作者: Mango
的HTML
使用
以下是有关HTML的一些规范
Display | Inline |
Start tag/End tag | Both Start and End tag |
Usage | Forms and Inputs |
Optgroup Tag
Example of optgroup tag
输出:
Attribute | Value | Description |
---|---|---|
disabled | disabled | If it is set then options of that optgroup will be disabled. |
label | text | It defines the label for the group which will be displayed in the drop-down list. It is required attribute. |
的HTML
的HTML
Element | Chrome | IE | Firefox | Opera | Safari |
Yes | Yes | Yes | Yes | Yes |