body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f5f5f5;
    font-family: 'Courier New', monospace;
}

#mydiv {
  position: absolute;
  z-index: 9;
  background-color: #ffffff;
  border: 1px solid #ffffff;
  text-align: center;
}

#mydivheader {
  padding: 1px;
  cursor: move;
  z-index: 10;
  background-color: #ffffff;
  color: #fff;
}

.gallery {
  --s: 130px; /* control the size of the images*/
  
  display: grid;
  grid-template-columns: repeat(3,auto);
  gap: 5px;
  position: relative;
}
.gallery input {
  position: absolute;
  border: 2px solid #000;
  border-radius: 50%;
  cursor: pointer;
  --g: linear-gradient(#000 0 0) no-repeat;
  background: var(--g) 50%/var(--b,0%) 3px,var(--g) 50%/3px var(--b,0%);
  transition: 1.5s;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}
.gallery > img {
  object-fit: cover;
  transform: scale(.1);
  filter: brightness(0);
  pointer-events: none;
  transform-origin: var(--x) var(--y);
  transition: 1s calc((var(--i) - 1)*.1s);
}
.gallery > img:nth-of-type(1) {--i:1;--x: 150%;--y:150%;}
.gallery > img:nth-of-type(2) {--i:2;--x:  50%;--y:150%;}
.gallery > img:nth-of-type(3) {--i:3;--x: -50%;--y:150%;}
.gallery > img:nth-of-type(4) {--i:4;--x: 150%;--y:50%; }
.gallery > img:nth-of-type(5) {--i:5 }
.gallery > img:nth-of-type(6) {--i:6;--x: -50%;--y:50%; }
.gallery > img:nth-of-type(7) {--i:7;--x: 150%;--y:-50%;}
.gallery > img:nth-of-type(8) {--i:8;--x:  50%;--y:-50%;}
.gallery > img:nth-of-type(9) {--i:9;--x: -50%;--y:-50%;}

.gallery > input:checked ~ img {
  transform: scale(1);
  filter: brightness(1);
  pointer-events: initial;
}
.gallery > input:checked {
  transform: translateY(calc(1.75*var(--s))) scale(.5) rotate(45deg);
  --b: 70%;
}


body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  background: #83AF9B;
}