diff --git a/views/ngXosViews/diagnostic/src/css/serviceTopology.css b/views/ngXosViews/diagnostic/src/css/serviceTopology.css
index 634b6ed..595ad27 100644
--- a/views/ngXosViews/diagnostic/src/css/serviceTopology.css
+++ b/views/ngXosViews/diagnostic/src/css/serviceTopology.css
@@ -38,6 +38,12 @@
     stroke-width: 1px;   
 }
 
+logic-topology .node.rack rect{
+    fill: #fff;
+    stroke: steelblue;
+    stroke-width: 1px;
+}
+
 /* LEGEND */
 
 .legend {