*{
    margin: 0;
    padding: 0;
  }
  a{
    text-decoration: none;
  }
  ul{
    list-style: none;
  }
  body{
    background-color: #eff8fe;
  }
    .heder_a{
      
      list-style: none;
    }
    .heder_a li{
      float: left;
    }
    .heder_a li>a{
      color: #3f3f3f;
      font-size: 18px;
    }
    
    .logo a{
      text-decoration: none;
      font-size: 50px;
      color: red;
      /* margin-left: 375px;
      margin-top: 100px; */
      font-family: '微软雅黑' bold;
    }
    
    .logo_img{
      width: 100px;
      height: 100px;
      background:url(../img/danghui.png) no-repeat;
      background-size: 65px;
      background-position: 40px 0;
    }
    .box2{
      background-color: #0187e6;
      
    }
    .navtab{
      list-style: none;
      background-color: #0187e6;
    }
    .navtab li{
      float: left;
      width: 12.5%;
      height: 100%;
      display: block;
      text-align: center;
    }
    .navtab li:hover{
      background: url(../img/荷花白（透明）.png) #0072d5 no-repeat;
      background-size: 60px;
      background-position: 42px 10px;
    }
    .navtab li>a{
      color: white;
      line-height: 60px;
      font-size: 18px;
      text-decoration: none;
      font-weight: bold;
    }