Our website is 6000+ pages, with 3 types of pages, with only 3 sets of code.
I've read Responsive Web Design Basics - Google Developers.
Do I understand correctly that it's possible to convert our site to a responsive web design by editing the CSS, not all 6000+ pages manually?
If so, can you please answer 2 questions...
1. Which methods...
Skills: bootstrap, mobile programming, responsive web design