.alpha {
    height: 100%;
    overflow: hidden;
    position: relative;
}

.alpha body {
    height: 100%;
    overflow: hidden;
}


.mask{
	background:#000;
	height: 100%;
	width:100%;
	z-index: 2;
	position: absolute;
	filter: alpha(opacity=90); 
	top:0;
	opacity: 0.5; 
	overflow: hidden;
	display: none;

}
.mask-info{
	display: none;
	position: absolute;
	top: 0px;
	right:0;
	line-height: 50%;
	z-index: 3;
	color:#fff;
	text-align: center;
}
.mask-info img{
	width:200px;
	height:130px;
}

.mask-text-info{
    display: none;
    position: absolute;
    top: 0;
    right: 0;
    /* line-height: 50%; */
    left: 0;
    bottom: 0;
    z-index: 3;
    color: #fff;
    text-align: center;
    margin: auto;
    height: 0px;	
}