trying to build a web ui tree from scratch

I have开发者_如何学Go seen yahoo ui using div for every node of the tree. Is this a good thing to do. Seems like every node including leaf node is heavily nested. I saw a div, table, tr, td being used for creating a node. Is this necessary. Is there a better way to do the same.

I tried to us tr for every node. Are there any issues with this approach

Thanks

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Try this: Pure CSS Tree