Base tree layout
diff --git a/gui/ngXosViews/serviceTopology/src/css/dev.css b/gui/ngXosViews/serviceTopology/src/css/dev.css
new file mode 100644
index 0000000..7ff2305
--- /dev/null
+++ b/gui/ngXosViews/serviceTopology/src/css/dev.css
@@ -0,0 +1,15 @@
+
+html, body {
+  margin: 0;
+  padding: 0;
+  max-height: 100%;
+  height: 100%;
+}
+
+#xosServiceTopology{
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+}
\ No newline at end of file
diff --git a/gui/ngXosViews/serviceTopology/src/css/serviceTopology.css b/gui/ngXosViews/serviceTopology/src/css/serviceTopology.css
new file mode 100644
index 0000000..05b06ed
--- /dev/null
+++ b/gui/ngXosViews/serviceTopology/src/css/serviceTopology.css
@@ -0,0 +1,25 @@
+service-canvas {
+    height: 100%;
+    width: 100%;
+    display: block;
+}
+
+.node {
+    cursor: pointer;
+}
+
+.node circle {
+    fill: #fff;
+    stroke: steelblue;
+    stroke-width: 3px;
+}
+
+.node text {
+    font: 12px sans-serif;
+}
+
+.link {
+    fill: none;
+    stroke: #ccc;
+    stroke-width: 2px;
+}
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