diff --git a/ui/stylesheets/csui/_csui.scss b/ui/stylesheets/csui/_csui.scss
index 2864460ad24..ba22257ea96 100644
--- a/ui/stylesheets/csui/_csui.scss
+++ b/ui/stylesheets/csui/_csui.scss
@@ -8,6 +8,7 @@
 html, body {
   height: 100%;
   font-family: Segoe UI,Trebuchet MS,Tahoma,Arial,sans-serif;
+  font-size: 14px;
 }
 
 // Sub-components