css居中盒子模式

body
{
background-color=#ffd8d9;
margin:1px 0px opx opx;
paddin:0px;
text-align:center;
font-size:12px;
font-family:Arial,Helvetica,sans-serif;
}

#container
{
position:relative;
margin:0px auto opx auto;
700px;
text-algin:left;
}