html,body {
	height: 100%;
}


* html .layer_board_bg,
* html .layer_board {
	position: absolute;
}

.layer_board_bg {
	position: fixed;
	width: 100%;
	height: 100%;
	
	z-index: 1000;
	
	top: 0;
	left: 0;
	
	display: none;
	cursor: pointer;
	background: #000;
}

.layer_board {
	display: none;
	position: fixed;
	left: 50%;
	margin: 200px 0px 0px -300px;
	width:600px;
	text-align: center;
	z-index: 2000;
}
.layer_board .cam_image{
	height:100%;
	width:100%;
}

/*  W < 700
================================================== */
@media only screen and  (max-width: 700px) {
.layer_board {
	margin: 200px 0px 0px -150px;
	width:300px;

}