<!DOCTYPE html>
<html lang="en"><head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"><meta charset="utf-8">
<title>Clicking the canvas should turn it green (and shift it slighly)</title>

<style>

canvas {
  border: 10px solid black;
}

.opacity {
  opacity: 0.8;
}

</style>

</head><body><div style="transform: translateX(1px)">
  <div class="wrapper" style="transform: translateX(1px);">
    <div class="opacity">
      <div class="border">
        <canvas id="canvas" width="200" height="200"></canvas>
      </div>
    </div>
  </div>
</div>

<script>

var canvas = document.getElementById('canvas');
canvas.width = 200;
canvas.height = 200;
var ctx = canvas.getContext('2d');
ctx.fillStyle = 'lime';
ctx.fillRect(0, 0, 200, 200);
</script>
</body></html>