body {
  background-color: #ddd;
  font-family: Verdana, sans-serif;
  font-size: 70%;
  color: #fff;
  text-align: center;
}

.help {
  background-color: #900;
  position: fixed;
  bottom: 10px;
  left: 0px;
  width: 100%;
  padding: 15px 0;
  opacity: 0.9;
}
.help ul {
  margin: 0;
  padding: 0 10px;
  list-style: none;
}
.help li {
  float: right;
  width: 10%;
}
.help li:first-child {
  float: left;
  width: 50%;
}
.help li a {
  background-color: #a00;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  padding: 5px 8px;
  color: #fff;
  text-decoration: none;
}
.help li a:hover {
  background-color: #d00;
}

canvas {
  border: 1px solid #666;
  /* From http://subtlepatterns.com/ps-neutral/ */
  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAQMAAAAlPW0iAAAABlBMVEX4+Pj09PQf/c7fAAAAGUlEQVR4XnXIMQ0AAACDMPyb3gxA0qswVX1+vw/xW46qyAAAAABJRU5ErkJggg==);
}
canvas.active {
  border: 1px solid #ffcc00;
}