.imageDiff {
  position: relative;
}
.imageDiff:hover {
  cursor: ew-resize;
}
.imageDiff__left {
  position: absolute;
  top: 0px;
  left: 0px;
}
.imageDiff__left img,
.imageDiff__right img,
.imageDiff__left,
.imageDiff__right {
  width: 100%;
}
.imageDiff__right {
  border-left: 1px solid red;
  clip-path: inset(0px 0px 0px 50%);
}
.imageDiff__left {
  clip-path: inset(0px 50% 0px 0px);
  padding-left: 1px;
}
.imageDiff__separator {
  display: none;
  background-color: red;
  width: 1px;
  height: 100px;
  position: absolute;
  top: -30px;
  left: 50%;
}