.card-group{grid-gap:20px;grid-auto-flow:row dense;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-template-columns:repeat(12,1fr);justify-content:stretch;justify-items:stretch}@media(min-width:768px){.card-group{grid-gap:50px}.card-group .single-card.span4{max-width:385px}}