It does work as a one time thing. But, having an extension like Stylebot installed and using a tiny custom CSS does offer an advantage - the CSS applies across

It does work as a one time thing. But, having an extension like Stylebot installed and using a tiny custom CSS does offer an advantage - the CSS applies across the domain and takes effect every time the page is loaded. For example, see this gallery - http://imgur.com/a/MxFtD http://imgur.com/a/MxFtD