垂直和Horizo​​natally中心主要包裹div

Joh*_*all 19 html css

可能重复:
如何在DIV中居DIV?

现在我试试

<html>
<head>

        <title>?????????????????</title>
        <style type="text/css">   
    body
    {

            margin-left: auto;
            margin-right:auto;
    }

    #wrap
    {
            background: black;
            margin-left: auto;
            margin-right:auto;
            height:450px;
            width:450px;
            position:absolute;
            top:50%;
            right:50%;
            left:50%;
            margin-top:-225px;
         }
    </style>
</head>
<body>
        <div id="wrap">
                Hello
        </div>
</body>
</html>
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?????

Eri*_*ric 0

尝试这个:

<html>
    <head>
        <title>?????????????????</title>
        <style type="text/css">
        #content
        {
            background: black;
            margin: -225px;
            height: 450px;
            width: 450px;
        }
        #wrap
        {
            height: 0px;
            width: 0px;

            position:absolute;
            top:50%;
            left:50%;
        }
        </style>
    </head>
    <body>
        <div id="wrap">
            <div id="content">
                Hello
            </div>
        </div>
    </body>
</html>
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