diff --git a/grid.css b/grid.css
index cd6235f..1324f94 100644
--- a/grid.css
+++ b/grid.css
@@ -15,11 +15,11 @@ html {
 }
 
 @media (min-width: 40rem) {
-  html { font-size: 112%; }
+  body { font-size: 112%; }
 }
 
 @media (min-width: 64rem) {
-  html { font-size: 120%; }
+  body { font-size: 120%; }
 }
 
 body {