#header, #content, #footer {
	margin-left: auto;
	margin-right: auto;
}
/** 布局基础样式 **/
.col-main {
	float: left;
	width: 100%;
	/* bug fix: 主栏没有内容时，在 Firefox 和 Chrome 等浏览器下，布局不对 */
	min-height: 1px;
}
.col-sub, .col-extra {
	float: left;/*position: relative;  按需设置，仅在需要时添加 */
}
/** 清除浮动 **/
.clear, .layout:after, .main-wrap:after, .col-sub:after, .col-extra:after {
	content: '\20';
	display: block;
	height: 0;
	clear: both;
}
.clear, .layout, .main-wrap, .col-sub, .col-extra {
 *zoom: 1;
	overflow: hidden;
}
/** 头部广告 **/
.grid-s150m0e170 .main-wrap {
	margin: 0 180px 0 160px;
}
.grid-s150m0e170 .col-sub {
	width: 150px;
	margin-left: -100%;
}
.grid-s150m0e170 .col-extra {
	width: 170px;
	margin-left: -170px;
}
/*头版头条*/
.grid-m0s280 .main-wrap {
	margin-right: 290px;
}
.grid-m0s280 .col-sub {
	width: 280px;
	margin-left: -280px;
}
.grid-m0s650 .main-wrap {
	margin-right: 660px;
}
.grid-m0s650 .col-sub {
	width: 650px;
	margin-left: -650px;
}
.grid-m0s260 .main-wrap {
	margin-right: 270px;
}
.grid-m0s260 .col-sub {
	width: 260px;
	margin-left: -260px;
}
/*首屏布局 300 360 280*/
.grid-s300m0e280 .main-wrap {
	margin: 0 290px 0 310px;
}
.grid-s300m0e280 .col-sub {
	width: 300px;
	margin-left: -100%;
}
.grid-s300m0e280 .col-extra {
	width: 280px;
	margin-left: -280px;
}
.grid-m0s272 .main-wrap {
	margin-right: 282px;
}
.grid-m0s272 .col-sub {
	width: 272px;
	margin-left: -272px;
}
.grid-m0s360 .main-wrap {
	margin-right: 370px;
}
.grid-m0s360 .col-sub {
	width: 360px;
	margin-left: -360px;
}
.grid-s280m0e300 .main-wrap {
	margin: 0 310px 0 290px;
}
.grid-s280m0e300 .col-sub {
	width: 280px;
	margin-left: -100%;
}
.grid-s280m0e300 .col-extra {
	width: 300px;
	margin-left: -300px;
}
.grid-s280m0e280 .main-wrap {
	margin: 0 290px 0 290px;
}
.grid-s280m0e280 .col-sub {
	width: 280px;
	margin-left: -100%;
}
.grid-s280m0e280 .col-extra {
	width: 280px;
	margin-left: -280px;
}
.grid-m0s280 .main-wrap {
	margin-right: 290px;
}
.grid-m0s280 .col-sub {
	width: 280px;
	margin-left: -280px;
}
.grid-s360m0e220 .main-wrap {
	margin: 0 230px 0 370px;
}
.grid-s360m0e220 .col-sub {
	width: 360px;
	margin-left: -100%;
}
.grid-s360m0e220 .col-extra {
	width: 220px;
	margin-left: -220px;
}
.grid-m0s280 .main-wrap {
	margin-right: 290px;
}
.grid-m0s280 .col-sub {
	width: 280px;
	margin-left: -280px;
}
.grid-s360m0e360 .main-wrap {
	margin: 0 370px 0 370px;
}
.grid-s360m0e360 .col-sub {
	width: 360px;
	margin-left: -100%;
}
.grid-s360m0e360 .col-extra {
	width: 360px;
	margin-left: -360px;
}
.grid-m0s475 .main-wrap {
	margin-right: 485px;
}
.grid-m0s475 .col-sub {
	width: 475px;
	margin-left: -475px;
}
.grid-m0s570 .main-wrap {
	margin-right: 570px;
}
.grid-m0s570 .col-sub {
	width: 570px;
	margin-left: -585px;
}
.grid-s313m0e266 .main-wrap {
	margin: 0 276px 0 323px;
}
.grid-s313m0e266 .col-sub {
	width: 313px;
	margin-left: -100%;
}
.grid-s313m0e266 .col-extra {
	width: 266px;
	margin-left: -266px;
}
/*尾屏布局*/
.grid-s310m0e310 .main-wrap {
	margin: 0 320px 0 320px;
}
.grid-s310m0e310 .col-sub {
	width: 310px;
	margin-left: -100%;
}
.grid-s310m0e310 .col-extra {
	width: 310px;
	margin-left: -310px;
}
.grid-s335m0e280 .main-wrap {
	margin: 0 290px 0 345px;
}
.grid-s335m0e280 .col-sub {
	width: 335px;
	margin-left: -100%;
}
.grid-s335m0e280 .col-extra {
	width: 280px;
	margin-left: -280px;
}
.grid-m0s300 .main-wrap {
	margin-right: 310px;
}
.grid-m0s300 .col-sub {
	width: 300px;
	margin-left: -300px;
}