404.html

<link rel="stylesheet" href="css/style.css">
<link rel="stylesheet" href="/css/404.css">
<script src="/js/404.js"></script> 
<p class="center">Space Invadors destroyed this page! Take revenge on them! Or go back to <a href="/index.html">Command Base (HomePage)</a>
  <br/> Use <span class="label label-danger">Space</span> to shoot and <span class="label label-danger">←</span>&#160;<span class="label label-danger">→</span> to move!&#160;&#160;&#160;<button class="btn btn-default btn-xs" id="restart">Restart</button></p>

<canvas id="space-invaders"/>