koala.css

html,
body {
  margin: 0;
  height: 100%;
  width: 100%;
  font-size: 14px;
  font-family: "Helvetica Neue",Helvetica,Arial,Sans-serif;
  font-weight: 300;
  text-align: center;
  cursor: default;

  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -o-user-select: none;
  user-select: none;

  -ms-touch-action: none;
}

div {
  cursor: inherit;
}

a {
  color: steelBlue;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

#center {
  position: relative;
  height: 100%;
  width: 512px;
  margin: 0 auto;
}

#cont {
  position: absolute;
  top: 50%;
  margin-top: -270px;
  width:  512px;
  height: 570px;
}

#dot {
  width:  512px;
  height: 512px;
}

svg,
circle {
  pointer-events: none;
}

#next {
  padding-top: 30px;
}

#next input {
  width: 480px;
  border: 1px solid #ccc;
  outline: none;
}

#next .err {
  color: red;
}

#footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding-top: 18px;
  padding-bottom: 2px;
  background: -webkit-gradient(linear, left bottom, left top, from(rgba(255, 255, 255, 1)), to(rgba(255, 255, 255, 0)));
  background: -moz-linear-gradient(bottom, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0));
}

div.not-found {
  text-align: center;
  margin-top: 200px;
  font-size: 32px;
}