SOURCE

<div class="root">
    <div class="box b1">1</div>
    <div class="box b2">2</div>
    <div class="box b3">3</div>
    <div class="box b4">4</div>
</div>

.root{
    width: 800px;
    height: 700px;
    border: 1px solid red;
    border-radius: 10px;
    position: relative;
    transform-style: preserve-3d;
    perspective: 700px;
    transform: rotateY(0deg);
    transition: all .75s;
}
.box{
    width: 180px;
    height: 240px;
    border: 2px solid greenyellow;
    border-radius: 6px;
    position: absolute;
  top:0;
  left:0;
    /* top: 50%;
    left: 50%;
    transform: translate(-50%,-50%); */
}
.root .b1{
    transform: rotateY(90deg) translateZ(300px);
}
.root .b2{
    transform: rotateY(180deg) translateZ(300px);
}
.root .b3{
    transform: rotateY(270deg) translateZ(300px);
}
.root .b4{
    transform: rotateY(360deg) translateZ(300px);
}