* {
	margin: 0;
	padding: 0;
	-webkit-tap-highlight-color: rgba(0, 0, 0, 0)
}

b,
body,
dd,
dl,
dt,
footer,
form,
h1,
h2,
h3,
h4,
header,
i,
img,
input,
ol,
p,
rb,
rt,
ruby,
section,
ul {
	margin: 0;
	padding: 0;
	font-style: normal
}

body,
html {
	font: "microsoft yahei", simsun, Tahoma, sans-serif
}

h1,
h2 {
	font: "microsoft yahei", simsun, Tahoma, sans-serif;
	font-size: 1rem
}

i {
	display: block;
	font-style: normal
}

li {
	list-style: none
}

a {
	text-decoration: none
}

img {
	border: 0
}
.clear {
	clear: both
}

.clear:after {
	content: " ";
	clear: both;
	line-height: 0;
	height: 0
}
.wrap {
	width: 1200px;
	height: 100%;
	position: relative;
	margin: 0 auto;
}
.chengg{
	width:100%;
	height:1px;
	background:none;
	position:relative;
}