html,
body {
  margin: 0;
  padding: 0;
}
html {
  font-size: 100% sans-serif;
  background: #ddd;
  color: #600;
}
#stage {
  position: relative;
  margin: 0 auto;
  padding: 0;
  width: 880px;
  overflow: hidden;
}
.myCanvas {
  width: 880px;
  height: 500px;
  background: url(http://placehold.it/880x500/3d3d3d) 0 0 no-repeat;
}