Hello- a full screen landscape gallery block is the first thing a user sees upon landing on my website. The orientation and screen extents look good on desktop but not so much on mobile where the landscape image is cropped to a portrait format. Is it possible, using custom code, to create an alternate. - or sub - portrait gallery that specifically shows on mobile? So what I am asking is: can a gallery block be split in two - with certain landscape images designated to display on desktop only and portrait images designated to only display on mobile?