Play audio slide show -- Keyboard shortcut: 'x'  Back to notes -- Keyboard shortcut: 'u'        next -- Keyboard shortcut: 'n'  Slide program -- Keyboard shortcut: 't'      An alternative version of theindent-pixel function.Lecture 2 - slide 45 : 46
Program 1
(define (indent-pixels p . contents)
  (div 'css:margin-left (as-string p) 
    contents))