.ken_zoom {
  position: relative;
  overflow: hidden;
}

.ken_zoom::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: inherit;
  background-size: cover;
  background-position: var(--kz-x, 50%) var(--kz-y, 50%);
  transition: transform 2.5s ease, background-position 2s ease;
  transform: scale(1);
  z-index: 0;
}

.ken_zoom:hover::before {
  transform: scale(1.05);
}

.ken_zoom > * {
  position: relative;
  z-index: 1;
}