CSS-expression实现图片缩放效果，兼容IE、FF

CSS代码

<style type="text/css">
.Image {
      max-width:100px;height:auto;cursor:pointer;
	  border:1px dashed #4E6973;padding: 3px;      
	  zoom:expression( function(elm) {          
	  	if (elm.width>100) {
			var oldVW = elm.width; elm.width=100;
			elm.height = elm.height*(100 /oldVW);
		}
		elm.style.zoom = '1';
	  }
	  (this));
} 
</style>

HTML代码

<img src="http://images.cnblogs.com/logo.gif" class="Image" />