html+css高度100%的时候边框超出,出现滚动条的解决办法,带边框的100%高度

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">



<html xmlns="http://www.w3.org/1999/xhtml">

<head>

    <title></title>

    <style type="text/css">

        html,body{ margin:0; padding:0; height:100%;}

        .content{ margin:0 auto; width:958px; height:100%; border-left:solid 1px #ccc;border-right:solid 1px #ccc;}

        .block{width:100%;height:100%;}

        .top_line{ position:absolute; top:0; width:958px; height:1px;border-top:solid 1px #ccc;}

        .bottom_line{ position:absolute; bottom:0; width:958px; height:1px;border-bottom:solid 1px #ccc;}

    </style>

</head>

<body>

<div class="content">

    <div class="top_line"></div>

    <div class="block">

//出自http://www.cnblogs.com/ahjesus 
尊重作者辛苦劳动成果,转载请注明出处,谢谢!

</div> <div class="bottom_line"></div> </div> </body> </html>

谁有更好的解决方案请留言,会在第一时间署名更新,(不用js)

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