body {
  margin: 10;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 20px;
  color: #333333;
  background-color: #ffffff;
}

#controls {
  margin-top: 1em;
}

/* SVG elements */
rect.fram {
  fill: #dfdfdf;
}

g.card {
  stroke-width: 1.5px;
}