Images one across on iPad

I have a projects page with two images across and it looks fine on a computer, but they look very small looking on an iPad. Is there code to have images stack on an iPad so only one appears across? Following is a link and screenshot below: URL: https://www.designsite.com/imnworld

Add this code to Website Tools (under Not Linked) > Custom CSS

@media screen and (max-width:1024px) and (min-width:768px) {
div#block-d9586aa9ff76845f4297~.row .span-6 {
    width: 100%;
}
}

Thanks you tuanphan - that's great!