Div.ccm-layout-column {float: left;} /* clearfix */ div.ccm-layout-column-wrapper {*zoom:1;} div.ccm-layout-column-wrapper:前，div.ccm-layout-column-wrapper:后{display:table;content:"";line-height:0;} div.ccm-layout-column-wrapper:后{clear:both;} #ccm-layout-column-wrapper-1307 div.ccm-layout-column- column {width: 33.33333333333333%;} #ccm-layout-column-wrapper-1307 div.ccm-layout-column-inner {margin-right: 48px;margin-left: 48 px;} #ccm-layout-column-wrapper-1307 div.ccm-layout-column:first child div.ccm-layout-column-inner {margin-left: 0px;} #ccm-layout-column-wrapper-1307 div.ccm-layout-column:last child div.ccm-layout-column-inner {margin-right: 0px;｝