首先引入一个jQuery的小问题 jQuery在设置透明度上是有问题的,首先看一下其代码: Code 代码如下: // IE uses filters for opacity if ( !jQuery.support.opacity && name == “opacity” ) { if ( set ) { // IE has trouble with opacity if it does not have layout // Force it by setting the zoom level elem.zoom = 1; // Set the alpha filter to set th