diff --git a/custom.css b/custom.css
index 5999872..9aceddd 100644
--- a/custom.css
+++ b/custom.css
@@ -11,6 +11,10 @@
     font-style: normal;
 }
 
+.reveal .slide-number {
+    font-size: 0.4em;
+}
+
 .citation {
     font-size: 0.6em;
 }
diff --git a/pandoc-revealjs.md b/pandoc-revealjs.md
index 5fd16bf..e54c601 100644
--- a/pandoc-revealjs.md
+++ b/pandoc-revealjs.md
@@ -10,6 +10,9 @@ title-slide-attributes:
 
 minScale: 0.2
 maxScale: 10.0
+slideNumber: true
+navigationMode: 'linear'
+controls: false
 ---
 
 # Layout