.nav {
        height: 48px;}
.nav ul {
height: 18px;}
.nav ul li{font-weight: 600;    font-size:16px;
height: 20px;
line-height: 16px;}


/*样式*/

.list_box .list_tit #xx {
  
    font-size: 16px;
    line-height: 40px;
    display: inline-block;
    height: 40px;
    padding: 5px 16px;
    text-align: center;}

.list_box .list_tit .on{
  color: #DC0000;
      border-bottom: 2px solid #DC0000;}