responsive margin for alternate block posts

assets/sass/_theme/blocks/posts.sass

@@ -183,5 +183,13 @@
                 margin-right: auto
                 .post
                     width: col(4, 10)
+        @include media-breakpoint-down(desktop)
+            .post 
+                .post-meta
+                    margin-top: half($spacing0)
+                .media
+                    margin-bottom: $spacing0
+                + .post
+                    margin-top: $spacing3
         .post .media img
             aspect-ratio: unset
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