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;
	text-align: center;
	z-index: 2000;
	position: relative;
	max-width: 600px; 
	margin: 3em auto;
	padding: 1em;
	box-sizing: border-box;
	font-size: 15px;
}
@media screen and (min-width: 769px) {
	.layer_board{
		padding: 0;
	}
}

.layer_board p.layer_in{
	overflow: auto;
	background-color: #ffffff;
	padding: 20px 40px;
    color: #707070;
    box-sizing: border-box;
	text-align: left;
}

.btn_close{
	text-align:right;
}
.btn_block{
	background-color:#fff;
	opacity: 0.8;
	padding-top:5px;
	padding-bottom:5px;
}
.btn_block a{
	color: blue;
    text-decoration: underline;
}
.layer_in img{
	margin: 1em 0;
	width: 100%;
}