.modal-dom{
	background-color:black;
	position:absolute;
	left:0;
	top:0;
	filter:alpha(opacity=50); /*ie濾鏡，透明度50%* ie89 支持*/
	-moz-opacity:0.5; /*firefox私有，透明度50%*/
	opacity:0.5;/*其他，透明度50%*/
	z-index:99;
	cursor: pointer;
    height: 100%;
    width: 100%;}
.modal-parent {
	position: relative;}