diff --git a/demo/less/main.less b/demo/less/main.less
index 2e6c8ff61..87a094414 100644
--- a/demo/less/main.less
+++ b/demo/less/main.less
@@ -63,6 +63,7 @@ body {
   right: 0;
   top: 0;
   bottom: 0;
+  font-size: 1.2rem;
 }
 
 .bi-theme-dark body {
@@ -98,4 +99,4 @@ body {
 
 .bi-progress-bar-bar {
   border-radius: 2rem;
-}
\ No newline at end of file
+}