.bg{
	/* background: url(../images/bg.png) no-repeat fixed center/cover; */
	position: fixed;
    left: 0;
    top: 0;
    z-index: -1;
    height: 100%;
    width: 100%;
}

.main{
	position: fixed;
	margin: auto;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
	width: 120px;
	height: 36px;
	/* padding-top: 88%; */
}

.main li{
	margin-bottom: 20px;
	width: 120px;
	height: 36px;
}

.main li a{
	display: block;
	height: 100%;
}

.main li a img{
	width:100%;
	height:auto;
}