header{
    width:100%;
    height:45px;
    text-align: center;
    color: #fff;
    line-height: 45px;
    font-size: 18px;
    background-image: url('/images/mtabs/headerbg.png');
    position: fixed;
    left:0;
    top:0;
    z-index:9999;
  }
  nav{
    width:100%;
    height:50px;
    background: #fff;
    position: fixed;
    left:0;
    bottom:0;
    border-top:1px solid #ddd;
    z-index:9999;
  }
  nav ul{
    margin:0;
    width:100%;
    height:50px;
    padding:0;
  }
  nav ul li{
    width:20%;
    height:50px;
    float: left;
    text-align: center;
    padding-top:7px;
    list-style: none;
  }
  nav ul li .icon{
    height:24px;
  }
  nav ul li .icon img{
    width:22px;
    height:22px;
    margin: 0 auto;
  }
  nav ul li .name{
    font-size: 10px;
    color:#c1c1c1;
    height:11px;
  }