Div position centering
I have need to position div with id="center_dv" on center of the div with id="wrapper_dv" and to div wrapper_dv be on center of body. How can I do it ?
<body>
<div id="wrapper_dv">
<div id="center_dv">
<p>some text<开发者_如何学编程/p>
</div>
</div>
</body>
the most common way is to give the div a width, and to use margin-left and margin-right: auto
If your div is normally having top and bottom margin as 0, then it can be
#center_dv { width: 300px; margin: 0 auto }
#wrapper_dv { width: 600px; margin: 0 auto }
(Giving margin 1 length means apply it to all 4 sides, top, bottom, left and right. Giving margin 2 lengths means apply the 1st length to top and bottom, and the 2nd length to left and right.)
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