<style>

    section.product-top .product-gallery-large-link {
        height: 100%;
        width: 100%;
        display: block;
        white-space: nowrap;
        text-align: center;
    }

    section.product-top .product-gallery-large .image-container > div {
        height: 700px;
        display: block;
        border: 1px solid red;
        white-space: nowrap;

        text-align: center;
    }

    .helper {
        display: inline-block;
        height: 100%;
        vertical-align: middle;
    }

    body.product section.product-top .product-gallery-large img {
        vertical-align: middle;
        max-height: 700px;
        max-width: 500px;
        display: inline;
    }

</style>