#root {
  position: absolute;
  left: 0px;
  top: 0px;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.rootDiv {
  position: absolute;
  left: 0px;
  top: 0px;
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}
#rootEven, #rootOdd {
  background-color: transparent;
}