.img-zoom-in {
    display: none;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;

    .back {
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        background-color: #000;
        opacity: 0.6;
    }

    img {
        position: relative;
        display: block;
        height: auto;
        max-width: 90%;
        margin: 0 auto;
        margin-top: 50px;
        cursor: pointer;
    }
}