.container {
  position: relative;
  width: 320px;
  margin: auto;
  perspective: 700px;
}

/* ensure full-height centering inside iframe */
html, body {
  height: 100%;
}
body {
  margin: 0;
  background: transparent;
  text-align: center;
  font-family: sans-serif;
  color: #fefefe;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);    /* 0.8 = 80% of original size */
  transform-origin: center; /* adjust where it scales from */
  }

.carousel {
  position: absolute;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d; 
  animation: rotate360 60s infinite forwards linear;
}
.carousel__face { 
  position: absolute;
  width: 300px;
  height: 187px;
  top: 20px;
  left: 10px;
  right: 10px;
  background-size: cover;
  box-shadow:inset 0 0 0 2000px rgba(0,0,0,0.5);
  display: flex;
}

span {
  margin: auto;
  font-size: 2rem;
}


.carousel__face:nth-child(1) {
  background-image: url("bbcsherlock.jpg");
  transform: rotateY(  0deg) translateZ(430px); }
.carousel__face:nth-child(2) { 
  background-image: url("thewhitestorm.webp");
    transform: rotateY( 40deg) translateZ(430px); }
.carousel__face:nth-child(3) {
  background-image: url("mrright.jpg");
  transform: rotateY( 80deg) translateZ(430px); }
.carousel__face:nth-child(4) {
  background-image: url("darkknight.jpg");
  transform: rotateY(120deg) translateZ(430px); }
.carousel__face:nth-child(5) { 
  background-image: url("moonknight.jpg");
 transform: rotateY(160deg) translateZ(430px); }
.carousel__face:nth-child(6) { 
  background-image: url("johnwick.jpg");
 transform: rotateY(200deg) translateZ(430px); }
.carousel__face:nth-child(7) { 
  background-image: url("blackadam.webp");
 transform: rotateY(240deg) translateZ(430px); }
.carousel__face:nth-child(8) {
  background-image: url("drstrange.jpg");
  transform: rotateY(280deg) translateZ(430px); }
.carousel__face:nth-child(9) {
  background-image: url("loki.webp");
  transform: rotateY(320deg) translateZ(430px); }



@keyframes rotate360 {
  from {
    transform: rotateY(0deg);
  }
  to {
    transform: rotateY(-360deg);
  }
}