Help. Photo size issue on mobile view

Hi, I have a problem with my website view in mobile version, the pictures are not showing their full size in the sections, could you please help me with the correct code to make it work?
 

link to the site - https://iris-sapphire-bmx5.squarespace.com/   pass: 123456

You mean top banner slideshow? Use this code to Website > Website Tools (under Not Linked) > Custom CSS

@media screen and (max-width:767px) {
.user-items-list-item-container[data-section-id="656f1945c90c203e44a0e2f7"] ul {
    min-height: unset !important;
}
}