#partners .partner-showcase-tier--gold {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

#partners .partner-showcase-tier--silver {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 840px) {
  #partners .partner-showcase-tier--gold,
  #partners .partner-showcase-tier--silver {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}