Minimal text over canvas html

[lemanschik]

copyed from https://github.com/stealify/editor/issues/2

<style type="text/css">
  canvas { background:blue }
  .wrap, .wrap canvas { width:400px; height:300px }
  .wrap { position:relative }
  .wrap > * { position:absolute }
  #go { top:20px; left:40px; width:150px; height:60px }
</style>
…
<div class="wrap">
  <canvas width="400" height="300"></canvas>
  <textarea id="go">Hello world</textarea>
</div>