Hello.
I am a developer with experience in using HTML, PHP, CSS, JQuery, Codeigniter, Bootstrap, Responsive Design, etc.
I can help you to solve the responsive banner issue.
1) I think we need to add media query into css, so when viewed on small screen we can set the banner height, and a little javascript code.
2) I think all modern browsers support media query, such as ie 9 above, firefox, etc.
3) I think we can do that, but when viewed on pc screen, right?
So, could we discuss it now?
Thank you