* {
    margin: 0;
    padding: 0;
    text-decoration: none;
    font-weight: normal;
    list-style: none;
    color: #333;
  }
  .nav {
    width: 100%;
    height: 65px;
    line-height: 65px;
    background: #2C86CA;
  }
  
  .nav ul {
    display: flex;
    justify-content: center;
  }
  
  .nav ul li {
    width: 175px;
    height: 65px;
    text-align: center;
    line-height: 65px;
  }
  .nav ul .on{
    background:#0262AA;
  }
  .nav ul li a {
    font-size: 20px;
    font-family: Microsoft YaHei;
  
    color: #FFFFFF;
  }
  
  .nav ul li:hover {
    background: #0262AA;
  }
  
  .nav ul li:hover a {
    font-weight: bold;
    color: #FFFFFF;
  }