<!DOCTYPE HTML>
<style>
  body {
    height:2000px;
    margin: 0px;
  }
</style>
<body name="body">
<form method="post" name="myform">
  <textarea>hello</textarea>
  <br><br><br><br>
  <input type="submit" name="send" id="btn" value="Send">
</form>
</body>