.m-mbx{ width:1200px; height:32px; line-height:32px; margin:0 auto;}
.m-center{ width:1200px; margin:0 auto;}
.m-center dt{ float:left; width:280px; background-color:#fafafa;}
.m-center dt a{ position:relative; display:block; height:60px; line-height:60px; text-align:center; font-size:16px;}
.m-center dt a.hover{ background-color:#1ca7fa; color:#fff;}
.m-center dt a.hover:before{ content: ""; width: 0px; height: 0px; border-top: 8px solid transparent; border-bottom: 8px solid transparent; border-left: 8px solid #1ca7fa; position: absolute; top: 21px; left: 280px;}
.m-center dd{ float:right; width:854px; padding: 20px ; background-color: #fff;min-height: 400px;}
.m-center dd h3{ height:60px; font-size:20px; font-weight:bold;}
.m-center dd .tit{ padding:0 0 8px; font-size:16px; color:#1ca7fa;}
.m-center dd p{ padding:0 0 12px;}
.m-center dd  div {font-size: 15px;line-height: 24px;}
#footer {margin-top: 20px;}
/**/