Trim redundant homepage card CSS

Author: tobiasraabe

docs/source/_static/css/custom.css

@@ -11,7 +11,6 @@
     margin: 0 auto 0.75rem;
     width: 44px;
     height: 44px;
-    object-fit: contain;
 }
 
 .home-card-title,
@@ -24,12 +23,6 @@
     font-size: 1.15em;
 }
 
-@media (max-width: 760px) {
-    .home-card-grid {
-        grid-template-columns: 1fr;
-    }
-}
-
 pre,
 li pre {
     padding-left: 0;