#flexslider {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: -10;
}

#flexslider > div:gt(0) {
  display: none;
}

#flexslider > div {
  position: absolute;
  top: 0px;
  left: 0px;
  right: 0px;
  bottom: 0px;
  background-size: cover;
}