关于html5:简单登录html页面

一个简略 pc+ 挪动端显示的 html
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    * {
      margin: 0px;
      padding: 0px;
    }

    .bg {
      width: 100%;
      height: 45vh;
      text-align: center;
      color: #fff;
      background-image: linear-gradient(160deg, #0078ff 20%, #002abb 80%);
      display: flex;
      justify-content: center;
      align-items: center;
    }

    /* 主体内容 */
    .content {
      width: 80%;
      max-width: 360px;
      background: #fff;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      padding: 20px;
      box-shadow: 0 16px 24px 2px rgba(0, 0, 0, 0.14), 0 6px 30px 5px rgba(0, 0, 0, 0.12), 0 8px 10px -5px rgba(0, 0, 0, 0.3);
    }

    .main {display: flex;}

    /* 输入框 */
    .inputbox {
      outline-style: none;
      margin-bottom: 10px;
      border: 1px solid #ccc;
      border-radius: 3px;
      padding: 13px 14px;
      font-size: 14px;
      font-weight: 700;
      width: 100%;
      box-sizing: border-box;
    }

    #tip {color: red;}

    /* 按钮 */
    .btn {
      width: 100%;
      height: 40px;
      border-width: 0px;
      border-radius: 3px;
      background: #1E90FF;
      cursor: pointer;
      outline: none;
      color: white;
      font-size: 17px;
    }
    .btn:hover {background: #5599FF;}
  </style>
</head>

<body>
  <div class="bg">
    <!-- <div class="title" 题目 </div> -->
  </div>
  <div class="content">
    <input class="inputbox" type="text" name="USERNAME" placeholder="Please input Username" id="name" />
    <br />
    <input class="inputbox" type="password" name="PASSWORD" placeholder="Please input Password" id="password"/>
    <br />
    <input type="submit" class="btn" onclick="loginFn()"/>
  </div>
  <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
  <script>
    function loginFn() {
      console.log({username:$('#name').val(),
          password:$('#password').val()})
      $.ajax({
        url:'',
        method:'POST',
        data:{username:$('#name').val(),
          password:$('#password').val()},
        success:function(res) {
          // 胜利
          console.log(res)
          if(res.code == 200) {window.location.href='/swagger-ui/index.html?data='+res.data}
        },
        error:function(err) {
          // 失败
          console.log(err)
        }
      })
    }
  </script>
</body>

</html>
简略的登录页面

code
