body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, input, textarea, p, blockquote, th, td {
	margin: 0;
	padding: 0;
}
a {
	text-decoration: none;
}
fieldset, img {
	border: 0;
}
address, caption, cite, code, dfn, em, th, var {
	font-style: normal;
	font-weight: normal;
}
ol, ul {
	list-style: none;
}
caption, th {
	text-align: left;
}
q:before, q:after {
	content: '';
}
abbr, acronym {
	border: 0;
}
/*通用父子盒子嵌套浮动问题解决，开始*/
.clear {
	margin: 0px auto;
	width: 100%;
	height: 1px;
	font-size: 1px;
	clear: both;
	background: none;
	overflow: hidden;
}
.clearfix:after {
	content: ".";
	display: block;
	height: 0;
	clear: both;
	visibility: hidden;
}
.clearfix {
	display: inline-block;
}
* html .clearfix {
	height: 1%;
}
.clearfix {
	display: block;
}
* {
   -webkit-box-sizing: border-box; 
   -moz-box-sizing: border-box;
   box-sizing: border-box;
   margin:0; 
}
*:before,*:after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  margin:0;
}
/*通用父子盒子嵌套浮动问题解决，结束*/
/*间隙层开始*/
.space_hx { /*横向间隙*/
	clear: both;
	width: 100%;
	height: 20px;
	font-size: 1px;
	overflow: hidden;
}
.space_zx { /*纵向间隙*/
	float: left;
	width: 10px;
	font-size: 1px;
	overflow: hidden;
}
/*间隙层结束*/