diff --git a/css/map.css b/css/map.css
index 11ba62976..b2929f149 100644
--- a/css/map.css
+++ b/css/map.css
@@ -65,9 +65,12 @@ g.vertex circle.stroke {
     fill:#333;
 }
 
-g.vertex.shared circle {
+g.vertex.shared circle.fill {
     fill:#aff;
 }
+g.vertex.shared circle.stroke {
+    fill:#044;
+}
 
 g.vertex.hover circle.fill {
     -webkit-transform:scale(1.5, 1.5);