diff --git a/views/ngXosViews/diagnostic/src/css/serviceTopology.css b/views/ngXosViews/diagnostic/src/css/serviceTopology.css
index 595ad27..525ca41 100644
--- a/views/ngXosViews/diagnostic/src/css/serviceTopology.css
+++ b/views/ngXosViews/diagnostic/src/css/serviceTopology.css
@@ -44,6 +44,12 @@
     stroke-width: 1px;
 }
 
+logic-topology .node .instance.active rect{
+    fill: lightsteelblue;
+    stroke: steelblue;
+    stroke-width: 1px;   
+}
+
 /* LEGEND */
 
 .legend {