Hi Telerik Skowronek,
We do not offer tableless rendering for the tooltip and the TABLE element is needed for many different features e.g one of them are the rounded corners. I am afraid that we cannot also provide a temporary workaround since even if we remove the table element, the source code uses it at many places and there could be unexpected behavior if we override so many internal methods. That is why what we can suggest is to either use the tooltip the way it is rendered or to implement a simple DIV popup for your needs.
the Telerik team
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