diff --git a/resources/css/ext.uls.css b/resources/css/ext.uls.css
index faab31c1..63a15fed 100644
--- a/resources/css/ext.uls.css
+++ b/resources/css/ext.uls.css
@@ -1,6 +1,8 @@
 /* Overrides to follow MediaWiki style */
 .uls-menu {
 	border-radius: 4px;
+	/* Ensure base font size is same in different skins */
+	font-size: medium;
 }
 
 .uls-search,
diff --git a/resources/css/ext.uls.languagesettings.css b/resources/css/ext.uls.languagesettings.css
index f77cbbef..3d353b14 100644
--- a/resources/css/ext.uls.languagesettings.css
+++ b/resources/css/ext.uls.languagesettings.css
@@ -72,6 +72,8 @@
 
 #language-settings-dialog {
 	background: #fbfbfb;
+	/* Ensure base font size is same in different skins */
+	font-size: medium;
 }
 
 .uls-language-settings-close-block {