.hizoom {
    position: relative;
    z-index: 10;
}

    .hizoom .magnifier {
        box-sizing: border-box;
        border: 1px solid #999;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 10;
        display: none;
        cursor: move;
    }

    .hizoom .small,
    .hizoom .big {
        position: absolute;
        border: 1px solid #ddd;
    }

    .hizoom .small {
        top: 0;
        left: 0;
        cursor: move;
    }

    .hizoom .big {
        overflow: hidden;
        display: none;
    }

        .hizoom .small img,
        .hizoom .big img {
            position: absolute;
            top: 0;
            left: 0;
        }