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html tags----说起来，这也不是什么大问题。不过，不弄清楚的话，梗在心里比较难受。
以下三个是我一直以来都没弄清楚的，昨天上google上查了一下，总算解了一段心结。
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The <div> tag
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The <div> tag
Definition and Usage
The <div> tag defines a division/section in a document.
Differences Between HTML and XHTML
The "align" attribute of the div element was deprecated in HTML 4.01.
The "align" attribute of the div element is not supported in XHTML 1.0 Strict DTD.
Tips and Notes
Note: Browsers usually place a line break before and after the div element.
Tip: Use the <div> tag to group block-elements to format them with styles.
Example
| Source |
Output |
This is some text <div style="color:#FF0000;">
<h4>This is a header in a div section</h4>
<p>This is a paragraph in a div section</p>
</div> |
This is some text
This is a header in a div section
This is a paragraph in a div section |
Optional Attributes
DTD indicates in which DTD the attribute is allowed. S=Strict, T=Transitional, and F=Frameset.
| Attribute |
Value |
Description |
DTD |
| align |
left
right
top
bottom |
How to align the text in the div element. Deprecated. Use styles instead. |
TF |
Standard Attributes
| id, class, title, style, dir, lang, xml:lang |
For a full description, go to Standard Attributes.
Event Attributes
| onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmousemove, onmouseout, onkeypress, onkeydown, onkeyup |
For a full description, go to Event Attributes.
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