I've had a similar challenge to many who have posted here. I have read and reread the Help section, and the online material. My thought after a few minutes was that even though I didn't know what a term meant, it would become clear later ... and though the paragraph didn't make sense, it would "jell" later. After reading through it multiple times, it hasn't. I used the HTML Editor for awhile, but it was modified awhile back - taking the "visual" interface away. Since then, well the code occupies space on my hard drive but I have no clue how to use it. When VSD has responsive layouts, the websites I maintain and those I'll create in the future will be "responsive".
George
"Good judgment comes from experience ... experience comes from bad judgment"