.page-nav-arrow {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  font-size: 5rem;
  color: #fff;
  background: rgba(0,0,0,0.3);
  padding: 0.75rem;
  width: 4rem;
  height: 4rem;
  line-height: 2rem;
  border-radius: 50%;
  cursor: pointer;
  z-index: 9999;
  text-align: center;
  user-select: none;
  transition: background 0.3s, transform 0.3s;
}

.page-nav-arrow:hover {
  background: rgba(0,0,0,0.6);
}

/* Positioning */

.page-nav-arrow.left {
  left: 1rem;
}

.page-nav-arrow.right {
  right: 1rem;
}

/* Mobile / small screens */

@media (max-width: 1023px) {
  .page-nav-arrow {
    width: 2.5rem;
    height: 2.5rem;
    line-height: 1rem!important;
    font-size: 3rem!important;
    padding: 0.5rem!important;
  }
}