@charset "utf-8";
.clearfix:after {
  content: '';
  display: block;
  clear: both;
}
.ta_center {
	text-align: center;
}
.fl_left {
	float: left;
}
.fl_right {
	float: right;
}
.mt30{
	margin-top: 30px;
}
.mt15{
	margin-top: 15px;
}
.backnum {
	margin: 0 auto;
	width: 885px;
	background: #e6e4e5;
	padding: 20px 20px 10px 20px;
	box-sizing: border-box;
}