code:
html, body, .root-contain {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.root-pager {
  position: absolute;
  bottom: 20px;
  right: 20px;
}
.root-pager a {
  display: inline-block;
  background: black;
  color: white;
  width: 20px;
  height: 20px;
  text-align: center;
  line-height: 20px;
  font-weight: bold;
  padding: 5px;
  text-decoration: none;
}
.root-pager a:hover {
  background: white;
  color: black;
}

license: wtfpl