Sample input: `"http://bits.wikimedia.org/w/extensions-1.17/MobileFrontend/stylesheets/webkit.css"` my attempt: `"http://.*?/stylesheets/webkit.css"` does not find any matches The part of the url between `"http://"` and `"webkit.css"` is variable Thanks! My bad, I was using Java's replace() function as opposed to replaceFirst() or replaceAll()