overlay.less

.overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: all 0.35s ease;
  -webkit-transition: all 0.35s ease;
  -moz-transition: all 0.35s ease;
  -o-transition: all 0.35s ease;
  -ms-transition: all 0.35s ease;
  border-radius: inherit;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  background-color: darken(@brand-primary, 20%);
  &:hover {
    opacity: 1;
    cursor: pointer;
  }
}