diff --git a/assets/mobile.css b/assets/mobile.css
index d6a7230..8e39a46 100644
--- a/assets/mobile.css
+++ b/assets/mobile.css
@@ -23,10 +23,10 @@
 {
   /* common */
 
-  h1 { font-size: 2em
+  h1 { font-size: 1.8em
      ; margin-top: 0
      }
-  h2 { font-size: 1em }
+  h2 { font-size: 1.3em }
 
   #breadcrumbs { font-size: 0.8em }