* {
    padding: 0;
    margin: 0;
    font-family: "微软雅黑Light";
  }
  ul {
    list-style: none;
  }
  a {
    text-decoration: none;
    color: #696969;
  }
  body,html{
    height: 100%;
    width: 100%;
  }
  .wrapper{
    height: 100%;
    width: 100%;
    display: flex;
  }