#div{
background: #ffc url(mid.jpg) repeat-y center;
position: absolute;
left: 50%;
width: 980px;
margin-left: -490px;
}
#div{
background: #ffc url(mid.jpg) repeat-y center;
position: absolute;
left: 50%;
width: 980px;
margin-left: -490px;
}
本文标题:position: absolute;居中
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