Training on Responsive Themes

I am just changing over from a regular website to a wordpress site with a responsive type theme. I have someone doing most of the work form me, but I still need to fix a lot of the content as the pages are moved over. I can’t find any quick courses on how to edit the old content,since the new themes are so different. An example is, how do I draw a border around text areas. Or color fill another area that you want highlighted within a text box. I would like to see a class on responsive wordpress themes 101 or something. Can anyone help?