/*初始化111*/ html,body{ margin: 0; padding: 0; } .pagebox{position:relative;width:1200px; margin:0px auto; }.resetHtmlCssStyle p{ color: #4c4c4c; font-size: 14px; line-height: 2; } .resetHtmlCssStyle div{ color: #4c4c4c; font-size: 14px; line-height: 2; } #index1{ background:url(/img/sybg.jpg) center no-repeat; background-size:cover; height:100%; } html, body{ height:100%; }