.topppa-hover-effect {
  position: relative;
}
.topppa-hover-effect::before {
  height: 100%;
  width: 100%;
  position: absolute;
  content: "";
  opacity: 0;
  left: 0;
  top: 0;
  transition: all 0.4s ease-in-out;
}
.topppa-hover-effect:hover::before {
  opacity: 1;
}

.topppa-image-hover-pixel {
  position: absolute;
  display: none;
  background-color: #ffffff;
}