Is the body wrapping div really necessary?
Question
A popular technique to build a set fixed centered layout is wrap everything in the body in a div and set some CSS rules on it, for example:
<body>
<div id="wrap">
all content here
</div>
</body>
#wrap { width: 850px; margin: 0 auto; }
I was wondering, if there is a reason to add this extra wrapping div, since setting the same CSS rules on the body works. Is it for compatibility with some browsers or just a tradition?
4 answers
solution1
3 ACCPTED 2012-01-04 02:56:16
No. You do not need a "wrapper" div that so many use because they saw others do so. Use the body for that as you should. Setting CSS properties on the body was a problem in the past but not any longer.
solution2
1 2012-01-04 02:43:16
It might work in some browsers, I don't think it'll work in all of them. Also, it's quite common to set a background on the body, then a separate one on the wrap.
solution3
0 2012-01-04 02:45:16
If you need a specific background for the whole page and a centered container, you can't do otherwise. It also provides a way to use "layers" like lightboxes that need to blur the whole #wrap content.
solution4
0 2012-01-04 02:57:16
要添加额外的包装，可以使body和div独立更改。
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