@charset "utf-8";
.mask {
	position: absolute;
	top: 0;
	left: 0;
	z-index: -1;
	min-width: 100%;
	min-height: 100%;
	width: auto;
	height: auto;
	background:url('/public_2017/tablet/images/top_img/mask.png');
	color: #fff;
}

.bg {
	position: absolute;
	z-index: -2;
	top: -50%; 
	left: 0%; 
	width: 200%; 
	height: 200%;
}

.bg2 {
	position: absolute;
	z-index: -2;
	top: -90%; 
	left: 0%; 
	width: 100%; 
	height: 200%;
}

.top_nav li:hover {border-bottom: 3px solid #6054a0}