CSS实现图片按比例缩放

.image {
??? max-width:600px;
??? height:auto;
??? cursor:pointer;
??? //border:1px dashed #4E6973;
??? //padding: 3px;
??? zoom:expression( function(elm) {
??????? if (elm.width>360) {
??????????? var oldVW = elm.width;
??????????? elm.width=360;
??????????? elm.height = elm.height*(360 /oldVW);处女座的女人
??????? }
??????? elm.style.zoom = '1';
??? }(this)
??? );
}


/*<img src="url" />*/