.navFix{
  position: fixed !important;
    top: 0;
    left: 0;
        background-color: #1a1a1a;
    box-shadow: 0 0 5px rgba(0,0,0, 0.2);
    border-bottom: 1px solid #e3e3e3\9;
    z-index: 99999;        }
        .p1745m99bfa5c008556dc5 a.active{color: #fff;
background: url(https://rc0.zihu.com/g3/M00/AC/D7/CgAH6GAvKX2ALZAKAAAEBvvw2xY392.png) no-repeat center bottom;
        }