<!--
  This form ha several markup errors: please fix them.
-->
<form action="/" method="SEND">
  <span>User Name:</span>
  <input type="number" placetext="Write your user name" id="username">

  <span>Password</span>
  <input type="text" placetext="Write your secret password" id="password">

  <button type="button">Submit this form</button>
</form>