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: -500px 0px 0px -300px;

	
text-align: center;

	z-index: 1000;

}