.portals{grid-template-columns:repeat(2,minmax(0,1fr))}
.portals>a:last-child{grid-column:auto}
@media(max-width:570px){.portals{grid-template-columns:1fr}}
.cube{padding:0;overflow:hidden;background:#111516}
.cube img{display:block;width:100%;height:100%;object-fit:cover}