body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    perspective: 1000px;
    margin: 0;
}

.wrapper {
    position: relative;
    width: 300px;
    height: 250px;
    transform-style: preserve-3d;
}

.bg_cn_1, .fg_cn_1 {
    position: absolute;
    width: 300px;
    height: 250px;
    top: 0;
    left: 0;
    transform-style: preserve-3d;
}

.bg_cn_2, .fg_cn_2 {
    position: absolute;
    width: 300px;
    height: 250px;
    top: 0;
    left: 0;
    transform-style: preserve-3d;
}

.pic1, .pic2 {
    position: absolute;
    width: 300px;
    height: 250px;
    top: 0;
    left: 0;
    background-size: contain;
    object-fit: contain;
    background-position: center;
    border-radius: 20px;
}

.pic1 {
    transform: scale(0.95);
}

.pic2 {
    transform: translateZ(30px) scale(0.9);
}