<div class="container" tabIndex="0">

  <div class="photo" style="
  background-image: url('https://images.unsplash.com/photo-1621269339551-15cbf8e41577?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwxNDU4OXwwfDF8cmFuZG9tfHx8fHx8fHx8MTYyMTYxMjk1OA&ixlib=rb-1.2.1&q=80&w=1600');"></div>

  <div class="instructions">Click to take picture</div>

  <div class="shutter" style="--flaps: 6">

    <div class="flap" style="--i: 0"></div>
    <div class="flap" style="--i: 1"></div>
    <div class="flap" style="--i: 2"></div>
    <div class="flap" style="--i: 3"></div>
    <div class="flap" style="--i: 4"></div>
    <div class="flap" style="--i: 5"></div>

  </div>

</div>

html {
  height: 100%;
  overflow: hidden;
}
body {
  min-height: 100%;
}

.container {
  cursor: pointer;
  background-position: center center;
  background-size: cover;
  background-image: url("https://images.unsplash.com/photo-1621295693450-080546d2ec8e?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwxNDU4OXwwfDF8cmFuZG9tfHx8fHx8fHx8MTYyMTYyOTMxMA&ixlib=rb-1.2.1&q=80&w=1800");
  width: 100vw;
  height: 100vh;
  position: relative;
}

// Replay animation!
.container:focus {
  display: none;
}

.flap {
  width: 150vmax;
  height: 150vmax;
  position: absolute;
  bottom: 50%;
  right: 50%;
  pointer-events: none;
  will-change: transform;

  background: hsl(calc(1turn * var(--p)), 80%, 80%);

  background: linear-gradient(35deg, #555, black);
  border: solid 4px #999;

  --p: calc(var(--i) / var(--flaps));

  animation: click 0.9s cubic-bezier(0.5, 0, 0.5, 1) 0.1s;

  transform-origin: bottom right;
  transform: rotate(-0.5turn) rotate(calc(1turn * var(--p))) skewX(30deg)
    translateX(-100%) translateY(90%);

  @keyframes click {
    48%,
    52% {
      transform: rotate(-0.25turn) rotate(calc(1turn * var(--p))) skewX(30deg)
        translateX(0%) translateY(0%);
    }
  }
}

.photo {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-position: center center;
  background-size: cover;
  box-shadow: 0 10px 40px #000;
  margin: -1rem;
  margin-bottom: -5rem;
  border: solid 1rem #fff;
  border-bottom-width: 5rem;

  animation: photo 5s cubic-bezier(0.5, 0, 0.5, 1) 0.9s both;
  @keyframes photo {
    30%,
    60%,
    70% {
      filter: sepia(30%) saturate(140%) contrast(120%);
      transform: scale(0.5) rotate(-4deg);
    }
    61% {
      opacity: 1;
    }
    71% {
      opacity: 0;
      transform: none;
    }
    100% {
      filter: none;
      opacity: 1;
    }
  }
}

.instructions {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  padding: 1rem;
  font-family: monospace;
  text-transform: uppercase;
  text-shadow: 0 1px 8px #fff;
}