src/posts/index.css

@@ -36,3 +36,17 @@
     display: grid;
     grid-template-columns: 2fr 1fr;
 }
+
+@media only screen and (max-width: 768px){
+    .post-2-1{
+        grid-template-columns: 1fr;
+    }
+
+    .post-1-1 {
+        grid-template-columns: 1fr;
+    }
+
+    .post-1-2 {
+        grid-template-columns: 2fr;
+    }
+}