HTML-lt;noframes-gt; label HTML5 does not support the label
The label is used to support browsers that do not support the elements, please refer to the following example:Displays the text of three frame frames, if the frame output is not supported, and the label is not supported:
<frameset cols="25%,50%,25%">
<frame src="frame_a.htm">
<frame src="frame_b.htm">
<frame src="frame_c.htm">
<noframes>抱歉，您的浏览器不支持 frame 属性！</noframes>
</frameset>
</html>
Try it out . . .
Browser support
At present, most browsers support the label.
Label definition and instructions for use
HTML5 does not support the labeling of the slt;noframes.
The element displays text for browsers that do not support the framework. The noframes element is located inside the frameset element.
The element is inserted in the element and is used in the element.
Note: If you want to verify the page that contains the frame, make sure that the DTD is set to Frameset DTD.
Note: If you want to add a label to the element, you must wrap the text in the label!
The difference between HTML 4.01 and HTML5
HTML5 does not support the label, which is supported by HTML 4.01.
The difference between HTML and XHTML
Important: In XHTML Frameset DTD, the text information located in the element of the .lt;noframes must have a close label.
The standard property
In HTML 4.01, the following standard properties are supported:
| 属性 | 值 | 描述 |
|---|---|---|
| class | classname | 规定元素的类名 |
| dir |
rtl
ltr |
规定元素中内容的文本方向 |
| id | id | 规定元素的唯一 id |
| lang | language_code | 规定元素中内容的语言代码 |
| style | style_definition | 规定元素的行内样式 |
| title | text | 规定元素的额外信息 |
| xml:lang | language_code | 规定 XHTML 文档中元素内容的语言代码 |
For a complete description, visit Standard Properties.
The event property
In HTML 4.01, the tag supports the following event properties:
| 属性 | 值 | 描述 |
|---|---|---|
| onclick | script | 当鼠标被单击时执行脚本 |
| ondblclick | script | 当鼠标被双击时执行脚本 |
| onmousedown | script | 当鼠标按钮被按下时执行脚本 |
| onmousemove | script | 当鼠标指针移动时执行脚本 |
| onmouseout | script | 当鼠标指针移出某元素时执行脚本 |
| onmouseover | script | 当鼠标指针悬停于某元素之上时执行脚本 |
| onmouseup | script | 当鼠标按钮被松开时执行脚本 |
| onkeydown | script | 当键盘被按下时执行脚本 |
| onkeypress | script | 当键盘被按下后又松开时执行脚本 |
| onkeyup | script | 当键盘被松开时执行脚本 |
For a complete description, visit Event Properties.