body {
	margin: 0px;
	font-family: 微软雅黑;
	height: 100vh;
	max-height: 100vh;
}

button {
	outline-style: none;
}

.table {
	display: table;
	box-sizing: border-box;
	-webkit-box-sizing: border-box;
	-ms-box-sizing: border-box;
	-o-box-sizing: border-box;
}

.row {
	display: table-row;
}

.cell {
	display: table-cell;
}

.center {
	width: calc(100% - 60px);
	position: relative;
	left: 60px;
}

.center>.img {
	position: relative;
}

.center>.img img {
	width: 100%;
	display: block;
}

.center>.img .abstract {
	width: calc(50% - 50px);
	position: absolute;
}

.center>.img .abstract_left {
	left: 50px;
	top: 50%;
	margin-top: -54px;
}

.center>.img .abstract_right {
	right: 50px;
	top: 50%;
	margin-top: -54px;
}

.center>.img .abstract span {
	display: block;
}

.center>.img .abstract .big {
	font-size: 30pt;
	color: #FFF;
}

.center>.img .abstract .small {
	font-size: 11pt;
	color: #FFF;
	margin-top: 16px;
}