#1196 Keep flowchart node label text (if already defined) when a style is applied

dist/index.html

@@ -343,6 +343,14 @@ class A someclass;
     linkStyle 1 stroke:DarkGray,stroke-width:2px
     linkStyle 2 stroke:DarkGray,stroke-width:2px
   </div>
+  <div class="mermaid">
+    graph LR
+    A(( )) -->|step 1| B(( ))
+    B(( )) -->|step 2| C(( ))
+    C(( )) -->|step 3| D(( ))
+    linkStyle 1 stroke:greenyellow,stroke-width:2px
+    style C fill:greenyellow,stroke:green,stroke-width:4px
+  </div>
 
   <hr/>