diff --git a/ui/stylesheets/csui/_button.scss b/ui/stylesheets/csui/_button.scss
index 033d8ba451f..2d62a4450e3 100644
--- a/ui/stylesheets/csui/_button.scss
+++ b/ui/stylesheets/csui/_button.scss
@@ -10,6 +10,10 @@
   font-size: 12px;
   border-radius: 3px;
   border: 1px solid black;
+
+  &:hover {
+    box-shadow: inset 0 0 10px black;
+  }
 }
 
 @mixin csui-button-cta {