style.css

body {
  background-color: black;
  height: 100vh;
  margin: 0px;
  overflow: hidden;
}

#gallery {
  height: 140vmax;
  width: 140vmax;
  position: absolute;
}

.tile {
  border-radius: 1vmax;
  position: absolute;
  transition: transform 800ms ease;
}

.tile:hover {
  transform: scale(1.1);
}

.tile:hover > img {
  opacity: 1;
  transform: scale(1.01);
}

.tile > img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 800ms ease, transform 800ms ease;
}

.tile:nth-child(1) {
  background-color: rgb(255, 238, 88);
  height: 14%;
  width: 20%;
  left: 5%;
  top: 5%;
}

.tile:nth-child(2) {
  background-color: rgb(66, 165, 245);
  height: 24%;
  width: 14%;
  left: 42%;
  top: 12%;
}

.tile:nth-child(3) {
  background-color: rgb(239, 83, 80);
  height: 18%;
  width: 16%;
  left: 12%;
  top: 34%;
}

.tile:nth-child(4) {
  background-color: rgb(102, 187, 106);
  height: 14%;
  width: 12%;
  left: 45%;
  top: 48%;
}

.tile:nth-child(5) {
  background-color: rgb(171, 71, 188);
  height: 16%;
  width: 32%;
  left: 8%;
  top: 70%;
}

.tile:nth-child(6) {
  background-color: rgb(255, 167, 38);
  height: 24%;
  width: 24%;
  left: 68%;
  top: 8%;
}

.tile:nth-child(7) {
  background-color: rgb(63, 81, 181);
  height: 16%;
  width: 20%;
  left: 50%;
  top: 74%;
}

.tile:nth-child(8) {
  background-color: rgb(141, 110, 99);
  height: 24%;
  width: 18%;
  left: 72%;
  top: 42%;
}

.tile:nth-child(9) {
  background-color: rgb(250, 250, 250);
  height: 15%;
  width: 8%;
  left: 84%;
  top: 74%;
}