html,body {
margin:0;
height:100%;
}
#test {
width:100%;
height:100%;
background-color:#000;
position:absolute;
top:44px;
left:0;
z-index:2;
opacity:0.3;
/*兼容IE8及以下版本浏览器*/
filter:alpha(opacity=30);
display:none;
}
#log_window {
width:200px;
height:200px;
background-color:#FF0;
margin:auto;
position:absolute;
z-index:3;
top:44px;
bottom:0;
left:0;
right:0;
display:none;
}
