implement family tree

Author: dabeng

demo/option-createNode.html

@@ -21,8 +21,8 @@
     .orgchart .node .second-menu {
       display: none;
       position: absolute;
-      top: 0;
-      right: -70px;
+      bottom: -35px;
+      right: 0;
       border-radius: 35px;
       box-shadow: 0 0 10px 1px #999;
       background-color: #fff;