public function display() { echo '<style type="text/css">'; echo '.wp-list-table .column-id { width: 5%; }'; echo '.wp-list-table .column-URI { width: 75%; }'; echo '.wp-list-table .column-timestamp { width: 15%; }'; echo '.wp-list-table .column-count { width: 5%; }'; echo '</style>'; parent::display(); }