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Cross-browser practice: fixed positioning of position:fixed layer_Experience exchange

WBOY
WBOYOriginal
2016-05-16 12:04:112337browse

Look at the example:

HTML example:


[Ctrl A Select all Note:If you need to introduce external Js, you need to refresh it before it can be executed]

Can you delete the first line of comments and see what the effect is?
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