Increasing Gallery Block Scale on Mobile

Site URL: https://www.jackmorris.photo

I'm struggling to display my main gallery page on mobile devices. My "Featured Work" page has a gallery block that I've set to 100% width so it fills the screen on larger devices, but on mobile the slideshow is cramped at the top of the screen. Is there a way to increase the slideshow's scale so the mobile viewing experience is better?

Images attached below. Ideally I'd like the scrolling photos to fill more of the mobile device screen if that's possible. Thanks!

Try adding to Design > Custom CSS

/* Mobile gallery height */
@media screen and (max-width:767px) {
div#block-yui_3_17_2_1_1559064987640_3650 .sqs-gallery-design-strip {
    height: 90vh !important;
}
}