diff --git a/source/Ox.UI/css/Ox.UI.css b/source/Ox.UI/css/Ox.UI.css
index c15ced97..399b9418 100644
--- a/source/Ox.UI/css/Ox.UI.css
+++ b/source/Ox.UI/css/Ox.UI.css
@@ -2672,3 +2672,6 @@ Miscellaneous
     white-space: nowrap;
     z-index: 1001;
 }
+.OxTooltip > div {
+    font-size: 9px;
+}