If you want the entire table to be scrollable horizontally you should probably place the CSS attributes on the top CSS class (wicket-tree-table).
Search the net for "CSS horizontal scoll". There should be loads of examples on how to do this using CSS. http://lmgtfy.com/?q=css horizontal scoll overflow > Where should I place the contents you have sent me as I tried it at TreeTable html & couldn't get the needed output? Please see the below code and > let me know where I can modify... >Tried for both TreeTable component html & web page html. ><wicket:panel> ><div class="wicket-tree-table">