Photo gallery block not fully responsive

This may be more a feature request than a support request but the photo gallery layout builder block looks terrible on mobile phones by default. I’ve had add some CSS to make it look reasonably good on mobile phones and vertical tablets:

@media only screen and (max-width: 768px) {
    #top #wrap_all .avia-gallery-thumb a {
        width: 25% !important;
    }
    #top div .avia-gallery img {
        padding: 2px !important;
    }
}

The site where I did this is in the Private Content if you want to take a look.