new editing tools not as good as original

Hello, it wasn’t that long ago that I could see everything when I switch to the visual tab. Now there is no way to change the font size, no way to highlight a field, no way to view while working on the page (aside from preview changes). Am I missing something? Was there an update that I can undo? I really liked the theme but am now finding it very difficult to make any changes. Any help or suggestions would be great.
Thanks

The page I need help with: [log in to see the link]