m11,m12,m21.m22是控制角度的
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<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>DIV旋转属性的演示</title><meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" /><style type="text/css"> body { font-family: "Arial", sans-serif;}#example { position: absolute;border: #09F solid 1px;font-weight: 900;padding: 10px;display: block;width: 500px;height: 400px;margin-top: -1px;margin-left: -1px;transform: rotate(40deg);-o-transform: rotate(40deg);-webkit-transform: rotate(40deg);-moz-transform: rotate(40deg);filter: progid:DXImageTransform.Microsoft.Matrix(sizingMethod='auto expand', M11=1.2660444431189777, M12=-0.3327876096865394, M21=0.1127876096865398, M22=0.9660444431189779);}</style><!--[if IE]><style type="text/css">#example { top: 50px;left: 50px;}</style><![endif]--></head><body><div id="example"> 旋转成功</div></body></html>