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: 25%;
    right: 25%;
	margin: 0px auto 0px;
	
	text-align: center;
	z-index: 2000;
}

@media screen and (max-width : 768px) {
	img.layer_board-img
	 {
		 max-width:80%;
		 margin:0 auto;
		}
	.layer_board_bg {
}

.layer_board {
	position: fixed;
	margin: 0px auto 0;
	left: 10%;
    right: 10%;
	text-align: center;
	z-index: 2000;
	}
	.layer_board img
	{
		margin:0 auto;
	}
}
@media screen and (max-width : 480px) {
	img.layer_board-img
	 {
		 max-width:90%;
		 margin:0 auto;
		}
.layer_board_bg {
}

.layer_board {
	position: fixed;
	margin: 0px auto 0;
	left: 10%;
    right: 10%;
	text-align: center;
	z-index: 2000;
	}
	.layer_board img
	{
		margin:0 auto;
	}
}