#wrapper #header {
  z-index: 5;
}

.watermark1 {
  z-index: 1;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background-repeat: repeat;
  background-position: 0px 0px;
}

.watermark2 {
  z-index: 1;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background-repeat: repeat;
  background-position: 9px 17px;
}

.watermark3 {
  z-index: 1;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background-repeat: repeat;
  background-position: 19px 34px;
}