I have Facebook Comment module installed in WordPress, for some unknown reason Facebook made some changes and now the class I need to change is dynamically as for example
#feedback_234734dsfn and so on, the only equal part is
#feedback_ is there any way or chance to set width to 100% on any element that holds
#feedback_ as class?
You can use the attribute starts with selector (the hash at the beginning of the class seems strange ?)
jQuery('[id^="feedback_"]').css('width', '100%' );
This recipe can be found in it's original form on Stack Over Flow.