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+<!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>