diff --git a/modules/web-map/src/main/resources/css/kafkatorio.css b/modules/web-map/src/main/resources/css/kafkatorio.css
index af65ac8..54b756e 100644
--- a/modules/web-map/src/main/resources/css/kafkatorio.css
+++ b/modules/web-map/src/main/resources/css/kafkatorio.css
@@ -2,6 +2,7 @@
 .leaflet-tile {
   width: 257px !important;
   height: 257px !important;
+  box-shadow: 0 0 1px rgba(0, 0, 0, 0.05);
 }
 
 html {