diff --git a/lib/default-theme/styles/theme.styl b/lib/default-theme/styles/theme.styl
index 33e13f3e0b..2d0fcec173 100644
--- a/lib/default-theme/styles/theme.styl
+++ b/lib/default-theme/styles/theme.styl
@@ -56,7 +56,7 @@ body
     border 1px solid #ddd
     border-radius 4px
   img
-    max-width $contentWidth
+    max-width 100%
 
 .content.custom
   padding 0