*{
	margin: 0;
	padding:3px 0px;
	font-size: 16px;
}
img{
	display: block;
}
.clearfix:before,
.clearfix:after {
    content: " ";
    display: table;
}
.clearfix:after {
    clear: both;
}


.page-header{
	position: fixed;
	left: 0;
	top: 0;
	width: 100%;
	background-color: #f50000;
	box-sizing: border-box;
	padding: 0 3em;
}
.page-title{
	width: 100%;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	line-height: calc(14px * 4);
	height: calc(14px * 4);
	text-align: center;
	color: #fff;
	font-size: 16px;
}
.page-back{
	display: block;
	position: absolute;
	left: 0;
	top: 0;
	width: calc(14px * 3);
	height: calc(14px * 4);
}
.page-back img{
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%,-50%);
	width: 50%;
}