I am quite competent with HTML & CSS, and have pretty much hand coded my sites (often with Dreamweaver as a time saver) but have always created "fixed width" web pages. I know that those days are over, and I want to begin to create my sites for mobile devices as well as tablets, and large monitors, etc.
I have been told that Bootstrap 3 (which I known almost nothing about) is the way to go (a good tool).
I would really love to hear any opinions, or hoping someone could please steer me in a direction so I can stay in the game.
I wouldn sincerely appreciate any thoughts.