jsp div層遮罩

 

<div class="panel-heading" style="position:relative;">     <——遮罩上層div
        <div class="mask-fixed" id="masking" ></div>    <——DIV遮罩 
.......內容區.......
</div>

css:
.panel-heading {border-bottom:0px solid #ffffff !important;
    padding:10px 0px !important;}
/*-DIV遮罩 ↓*/
.mask-fixed {position:absolute;opacity:.4;filter: alpha(opacity=40);left:0;top:0;
    width:100%;height:100%;background:#b3c7e0;z-index:1500;padding:5px 0;}