.pure-menu-heading {
  text-transform:none;
  font-weight: bolder;
}
img.arrow {
  opacity: 0.5;
}
img.arrow:hover {
  opacity: 1.0;
}

div.custom_picture_div {
  position: relative;
}
div.left_child_area {
  position: absolute;
  top: 0px;
  left: 0px;
}
div.right_child_area {
  position: absolute;
  top: 0px;
  right: 0px;
}
div.overlay_area {
  position: absolute;
  top: 0px;
  left: 0px;
}