body {
      font-family: Arial, sans-serif;
      background-color: #f0f0f0;
      text-align: center;
    }

    #container {
      max-width: 400px;
      margin: 100px auto;
      background-color: #ffffff;
      padding: 20px;
      border-radius: 5px;
      box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    }

    h2 {
      margin-bottom: 30px;
    }

    label {
      display: block;
      margin-bottom: 10px;
    }

    input[type="text"],
    input[type="password"],
    select {
      width: 100%;
      padding: 10px;
      border: 1px solid #ccc;
      border-radius: 3px;
      box-sizing: border-box;
      margin-bottom: 20px;
    }

    input[type="submit"] {
      width: 100%;
      padding: 10px;
      background-color: #4CAF50;
      color: #ffffff;
      border: none;
      border-radius: 3px;
      cursor: pointer;
    }