article.cs-articlePreviewSmall {width: calc(100% /4 - 2em);}

@media (max-width: 1199.98px) {
  article.cs-articlePreviewSmall {width: calc(100% /3 - 2em);}
}

@media (max-width: 775.98px) {
  article.cs-articlePreviewSmall {width: calc(100% /2 - 2em);}
}