* {
  margin: 0;
  padding: 0;
  outline: none;
  border: none;
  box-sizing: border-box;
}
*:before,
*:after {
  box-sizing: border-box;
}

.container {
  margin: 4% auto;
  width: 160px;
  height: 100px;
  position: relative;
  perspective: 1000px;
}
#carousel {
  width: 100%;
  height: 100%;
  position: absolute;
  transform-style: preserve-3d;
  animation: rotation 20s infinite linear;
}
/* #carousel:hover {
  animation-play-state: paused;
} */
#carousel figure {
  display: block;
  position: absolute;
  width: 160px;
  height: 280px;
  left: 10px;
  top: 10px;
  background: black;
  overflow: hidden;
}
#carousel figure:nth-child(1) {
  transform: rotateY(0deg) translateZ(288px);
}
#carousel figure:nth-child(2) {
  transform: rotateY(40deg) translateZ(288px);
}
#carousel figure:nth-child(3) {
  transform: rotateY(80deg) translateZ(288px);
}
#carousel figure:nth-child(4) {
  transform: rotateY(120deg) translateZ(288px);
}
#carousel figure:nth-child(5) {
  transform: rotateY(160deg) translateZ(288px);
}
#carousel figure:nth-child(6) {
  transform: rotateY(200deg) translateZ(288px);
}
#carousel figure:nth-child(7) {
  transform: rotateY(240deg) translateZ(288px);
}
#carousel figure:nth-child(8) {
  transform: rotateY(280deg) translateZ(288px);
}
#carousel figure:nth-child(9) {
  transform: rotateY(320deg) translateZ(288px);
}

img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* ensures the image fills the container */
  /* -webkit-filter: grayscale(1); */

  transition: all 0.5s ease;
}

img:hover {
  -webkit-filter: grayscale(0);
  transform: scale(1, 1);
}

@keyframes rotation {
  from {
    transform: rotateY(0deg);
  }
  to {
    transform: rotateY(360deg);
  }
}