.guten-zdVuwh .guten-postblock .guten-posts { grid-template-columns: repeat(3, minmax(0, 1fr)); } .guten-zdVuwh.guten-element {   } @media only screen and (max-width: 767px) { .guten-zdVuwh .guten-postblock .guten-posts { grid-template-columns: repeat(1, minmax(0, 1fr)); } }