// Change the selector if needed var $table = $('table.scroll'), $bodyCells = $table.find('tbody tr:first').children(), colWidth; // Adjust the width of thead cells when window resizes $(window).resize(function() { // Get the tbody columns width array colWidth = $bodyCells.map(function() { return $(this).width(); }).get(); // Set the width of thead columns $table.find('thead tr').children().each(function(i, v) { $(v).width(colWidth[i]); }); }).resize(); // Trigger resize handler