slider image size in prestashop 1.7

[cchris-king]

hello i hope i will get your help cause i really need it;

i have edited the classic theme to be full scream i set major div classes width to 100% and everything adapted to the screan exactly as i wanted even the slider adapted automatically the width is 100% automatically, but the height didn't adapt all images are cut in half how can configure the size of slider ?