I know. It’s weird. No special plug-in. Code is not removed. If possible, I can send you a copy of the complete active style.css file. I’ll send you my email in a private reply, and let me know. As indicated before, your help is definitely appreciated.
With my limited knowledge, I am definitely confused by the new HTML5 “responsive” code. Doesn’t seem as intuitive to a non-coder like me, compared to pre-HTML5. And Firebug doesn’t seem to read/ play-back the code accurately.