diff --git a/in/style/main.css b/in/style/main.css
index 116e3e6..f23fafb 100644
--- a/in/style/main.css
+++ b/in/style/main.css
@@ -250,9 +250,10 @@ ul {
 }
 
 @media (width > 66ch), print {
-    .columns { grid-template-columns: 2fr 1fr; }
-    aside { order: 2; }
-    main { order: 1; }
+    .columns { grid-template-columns: 1fr 2fr; }
+    body.swap .columns { grid-template-columns: 2fr 1fr; }
+    body.swap aside { order: 2; }
+    body.swap main { order: 1; }
 }
 
 @media print {