Forms - Select with optgroup

by gocode

HTML

<form action="/httpbin.org/post" method="post">
  <div>
    <label for="name">Name:</label>
    <input type="text" id="name" name="user_name" />
    <div>
      <div>
        <label for="mail">E-mail:</label>
        <input type="email" id="mail" name="user_email" />
      </div>
      <div>
        <label for="msg">Message:</label>
        <textarea id="msg" name="user_message"></textarea>
      </div>
    </div>
  </div>
  <button>Submit</button>
</form>