diff --git a/2-ui/1-document/02-dom-nodes/article.md b/2-ui/1-document/02-dom-nodes/article.md
index c253157e..248ddb8a 100644
--- a/2-ui/1-document/02-dom-nodes/article.md
+++ b/2-ui/1-document/02-dom-nodes/article.md
@@ -188,7 +188,7 @@ For example, comments:
 <div class="domtree"></div>
 
 <script>
-let node6 = {"name":"HTML","nodeType":1,"children":[{"name":"HEAD","nodeType":1,"children":[]},{"name":"BODY","nodeType":1,"children":[{"name":"#text","nodeType":3,"content":"\n  The truth about elk.\n    "},{"name":"OL","nodeType":1,"children":[{"name":"#text","nodeType":3,"content":"\n      "},{"name":"LI","nodeType":1,"children":[{"name":"#text","nodeType":3,"content":"An elk is a smart"}]},{"name":"#text","nodeType":3,"content":"\n      "},{"name":"#comment","nodeType":8,"content":"comment"},{"name":"#text","nodeType":3,"content":"\n      "},{"name":"LI","nodeType":1,"children":[{"name":"#text","nodeType":3,"content":"...and cunning animal!"}]},{"name":"#text","nodeType":3,"content":"\n    "}]},{"name":"#text","nodeType":3,"content":"\n  \n"}]}]};
+let node6 = {"name":"HTML","nodeType":1,"children":[{"name":"HEAD","nodeType":1,"children":[]},{"name":"BODY","nodeType":1,"children":[{"name":"#text","nodeType":3,"content":"\n  The truth about elk.\n  "},{"name":"OL","nodeType":1,"children":[{"name":"#text","nodeType":3,"content":"\n    "},{"name":"LI","nodeType":1,"children":[{"name":"#text","nodeType":3,"content":"An elk is a smart"}]},{"name":"#text","nodeType":3,"content":"\n    "},{"name":"#comment","nodeType":8,"content":"comment"},{"name":"#text","nodeType":3,"content":"\n    "},{"name":"LI","nodeType":1,"children":[{"name":"#text","nodeType":3,"content":"...and cunning animal!"}]},{"name":"#text","nodeType":3,"content":"\n  "}]},{"name":"#text","nodeType":3,"content":"\n\n\n"}]}]};
 
 drawHtmlTree(node6, 'div.domtree', 690, 500);
 </script>