Is it possible to with any Chrome or any other developer tools to see which CSS files link to in a page dont actually exist?
In any browser's Developer Tools, if you switch to the
Network pane, you'll see all requests made from the page. Look for red lines, those will be requests that failed. Of those, look for the ones that have a 404 (Not Found) Status. As the comments said, the ones ending with
.css are the ones you like.
As a bonus, FireFox's Dev Tools have a filter at the bottom - choose "CSS" and you'll only see requests for CSS files - successful, or otherwise.