.zoom-box {
    position: relative;
}

    .zoom-box img {
        vertical-align: bottom;
    }

    .zoom-box .zoom-selector {
        position: absolute;
        background-image: url("images/selector.png");
        background-repeat: repeat;
        display: none;
        cursor: crosshair;
    }

    .zoom-box .viewer-box {
        position: absolute;
        border: 2px solid rgb(239,237,240);
        display: none;
        overflow: hidden;
        margin: 0px;
        top: 50% !important;
        -ms-transform: translateY(-50%);
        transform: translateY(-50%);
    }

        .zoom-box .viewer-box > img {
            position: absolute;
            left: 0;
            top: 0;
        }