style{filter:alpha(opacity=50); -moz-opacity:0.8; -khtml-opacity: 0.8; opacity: 0.8;}
值有100%或0-1.
style{filter:alpha(opacity=50); -moz-opacity:0.8; -khtml-opacity: 0.8; opacity: 0.8;}
值有100%或0-1.
转载于:https://www.cnblogs.com/czj33499173/archive/2011/12/29/2305939.html