Hi, I'm trying to add a class to a <td> tag (which already has a class "description" on it) within a <tr> using JQuery when the user hovers over the <tr> tag. But my code doesn't seem to work. Please can you help? Here is my code: $(document).ready(function(){ $( function() { $("table.mytable tr").hover( function() { $(this).("td.description").addClass("highlight"); }, function() { $(this).("td.description").removeClass("highlight"); } ) } ) }); Code (markup):