.ps_downarrow {
  margin-bottom: 8rem;
  position: relative;
}

.ps_downarrow::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -8rem;
  transform: translateX(-50%);
  width: 10rem;
  height: 8rem;
  background: url("../images/downarrow_red.png") center center no-repeat;
}

@media screen and (max-width: 559px) {

.ps_downarrow {
  margin-bottom: 8rem;
}

.ps_downarrow::after {
  bottom: -8rem;
}

}