diff --git a/src/modules/reveal.less b/src/modules/reveal.less
index 3ca9e4874..7756f8d6d 100755
--- a/src/modules/reveal.less
+++ b/src/modules/reveal.less
@@ -21,7 +21,7 @@
 }
 
 .ui.reveal > .content {
-  font-size: 1em !important;
+  font-size: 1rem !important;
 }
 
 .ui.reveal > .visible.content {