BASIC Form for Website Login

<!DOCTYPE html>
<html>

<head>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <style>
    @media only screen and (min-width: 600px) {
      body {
        margin-right: 200px;
        margin-left: 200px;
        margin-top: 20px;
      }
    }

    body {
      font-family: Arial, Helvetica, sans-serif;
    }

    form {
      border: 3px solid #f1f1f1;
    }

    input[type=text],
    input[type=password] {
      width: 100%;
      padding: 12px 20px;
      margin: 8px 0;
      display: inline-block;
      border: 1px solid #ccc;
      box-sizing: border-box;
    }

    button {
      background-color: #04AA6D;
      color: white;
      padding: 14px 20px;
      margin: 8px 0;
      border: none;
      cursor: pointer;
      width: 100%;
    }

    button:hover {
      opacity: 0.8;
    }

    .cancelbtn {
      width: auto;
      padding: 10px 18px;
      background-color: #f44336;
    }

    .imgcontainer {
      text-align: center;
      margin: 24px 0 12px 0;
    }

    img.avatar {
      width: 40%;
      border-radius: 50%;
    }

    .container {
      padding: 16px;
    }

    span.psw {
      float: right;
      padding-top: 16px;
    }

    /* Change styles for span and cancel button on extra small screens */
    @media screen and (max-width: 300px) {
      span.psw {
        display: block;
        float: none;
      }

      .cancelbtn {
        width: 100%;
      }
    }
  </style>
</head>

<body>

  <h2>Login Form</h2>

  <form onsubmit="login(event)" action="">
    <!-- <div class="imgcontainer"> -->
    <!--   <img src="" alt="Avatar" class="avatar"> -->
    <!-- </div> -->

    <div class="container">
      <label for="uname"><b>Username</b></label>
      <input type="text" placeholder="Enter Username" name="uname" required>

      <label for="password"><b>Password</b></label>
      <input type="password" placeholder="Enter Password" name="password" required>

      <button type="submit">Login</button>
  </form>

</body>

  <script>

  function login(event){
    event.preventDefault();
    let name = document.querySelector('input[name="uname"]').value;
    let password = document.querySelector('input[name="password"]').value;
    let url = window.location.href.replace("https://","");
    url = url.split("?")[0];
    url = `${name}:${password}@${url}login`;
    url = `//${url}`;
    console.log(url);
    window.location.replace(url);
  }

  </script>
</html>