html,
body {
	background: #F1F3F3;
	font-size: 14px;
}

.box {
	width: 100%;
	height: auto;
	box-sizing: border-box;
	background: white;
	font-size: 0;
}

.box_a,.box_b{
	width: 100%;
	height: 70px;
	color: #3a3a3a;
	position: relative;
	display: flex;
	align-items: center;
}
.box_a>img,.box_b>img{
	margin-left: 20px;
}
.box_a>span,.box_b>span{
	margin-left: 8px;
	font-size: 18px;
}
.box_b{
	border-top: 5px solid #F1F3F3;
}
.change{
	position: absolute;
	white-space: nowrap;
	top: 0;
	height: 70px;
	width: 50px;
	right: 10px;
	display: flex;
	flex-wrap: nowrap;
	justify-content: space-between;
	align-items: center;
}
.change>span{
	font-size: 14px;
	color: #adadad;
}
.change>img{
	width: 10px;
	height: 15px;
}