If you wish to tweak your survey style with CSS, here are few ready-made snippets you can just copy-paste to the CSS editor in the Design view. CSS editor is behind the </> button in the Style section.
You an for example use following CSS snippets to edit the survey.
Adjust column width in a certain scale element
p0e0 is the location of the element on the survey form. First page first element in the CSS-example. Calculate pages 'p' from zero and elements 'e' on each page from zero. Include images and text elements to the calculations.
Remove a navigation button from the survey form
Names of the navigation buttons:
_save = Save and continue later (email invite surveys)
_submit = Submit answers
_next = Next page
_prev = Previous page
_returnsubmit = Return to survey to edit answers (email invite surveys)