contact.html

<!DOCTYPE HTML>
<html>
<title>Contact</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<div class="w3-container w3-padding-32" id="contact">
    <h3 class="w3-border-bottom w3-border-light-grey w3-padding-16">Contact</h3>
    <p>Want to leave a message? Here you go!!</p>
 <form action="thankyou.php" target="_blank">
      <input class="w3-input" type="text" placeholder="Name" required name="Name">
      <input class="w3-input w3-section" type="text" placeholder="Email" required name="Email">
      <input class="w3-input w3-section" type="text" placeholder="Subject" required name="Subject">
      <input class="w3-input w3-section" type="text" placeholder="Comment" required name="Comment">
      <button class="w3-button w3-black w3-section" type="submit">
        <i class="fa fa-paper-plane"></i> SEND MESSAGE
      </button>
    </form>
</div>
     </form>
  </div>
</html>