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: #fff;
}

.layer_board {
	display: none;
	position: fixed;
	top: 50%;
	left: 50%;
	/* margin: 80px 0px 0px -285px; */
	transform: translate(-50%, -50%);
	text-align: center;
	z-index: 2000;
}

@media screen and ( max-width: 600px ){
	.layer_board img.banner{
		/*display: block;*/
		width: 400px;
		height: auto;
	}
}