什么是HTML中的DIV元素的有效属性？

• id,class (document-wide identifiers)
• lang (language information),dir (text direction)
• title (element title)
• style (inline style information)
• align (alignment)
• onclick,ondblclick,onmousedown,onmouseup,onmouSEOver,onmousemove,onmouSEOut,onkeypress,onkeydown,onkeyup

for for label,并指定标签应用于的输入元素的id属性.

另见HTML5 specs：

The div element has no special meaning at all. It represents its children. It can be used with the class,lang,and title attributes to mark up semantics common to a group of consecutive elements.

Note: Authors are strongly encouraged to view the div element as an element of last resort,for when no other element is suitable. Use of more appropriate elements instead of the div element leads to better accessibility for readers and easier maintainability for authors.