I don't mean to sound rude, but Opera is not good for testing or changing things on a website. It for some reasons uses cache of the web page. I was using it to test some code and it didn't matter how much I changed the code, Opera also showed the same thing. I used firefox, and it showed the changes. I even seen this happen on a Mac. My partner said something wasn't working on his Mac browser, yet all mine showed it was working well including any changes I made. I think it had to do with the cache. He cleared them and changed a setting and showed the new changes and things started working for him. It does make life frustrating when it works for some and not others.