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;
	width: 600px;
	background: #fff;
	left: 50%;
	margin: 50px 0px 0px -315px;
	padding: 20px;
	text-align: center;
	z-index: 2000;
}

.f11a { font-size: 1.1em; }

@media screen and (max-width:768px){

.layer_board { width: 86%; margin: 50px 0px 0px -43%;}
.f11a { font-size: 1em; }
.pc { display: inline; }
.sp { display: none; }
}