diff --git a/data/theme/gtk-styles.css b/data/theme/gtk-styles.css
index 035c8bb1..d6089ad7 100644
--- a/data/theme/gtk-styles.css
+++ b/data/theme/gtk-styles.css
@@ -56,11 +56,13 @@ GtkClutterOffscreen.contents .frame {
 }
 
 .event {
-  border-radius: 0;
-  padding-top: 3px;
-  padding-left: 6px;
-  padding-bottom: 3px;
-  padding-right: 6px;
+  border: darker(@borders) 1px solid;
+  border-radius: 2px;
+  margin-top: 3px;
+  margin-left: 6px;
+  margin-bottom: 3px;
+  margin-right: 6px;
+  padding: 4px;
   font: 9;
 }