Responsive Easybank landing page

It took much time from me due to some personal reason and some issue that I faced using (Toggle device toolbar ) that you can open it by clicking ( Ctrl + Shift + M ), you can't see the effect of 'overflow : hidden ' in CSS because it doesn't work using this tool (Toggle device toolbar) so I was thinking there is a problem in my code. It took much time from me to realize that I need to close the tool.

I think I have some issue in CSS file (media.css) like duplicated styles, I know must correct it but I'm very tired.

I will do better in my next challenges by avoiding my mistakes.