node.anon { fill: #ffe0e0; }

[ ]
--> [ ] { border-style: bold; } 
--> [ ] { border-color: blue; border-style: solid; } 
--> [ ] { border-color: blue; }
--> [ 1 ] { label: " "; border: none; } 
--> [ 2 ] { shape: invisible; }
