code: def remove_comments(css):
      
  
      iemac = False
      preserve = False
      comment_start = css.find("/*")
      while comment_start >= 0:
          # Preserve comments that look like `/*!...*/`.
          # Slicing is used to make sure we don"t get an IndexError.
          preserve = css[comment_start + 2:comment_start + 3] == "!"
  
          comment_end = css.find("*/", comment_start + 2)
          if comment_end < 0:
              if not preserve:
                  css = css[:comment_start]
                  break
          elif comment_end >= (comment_start + 2):
              if css[comment_end - 1] == "\\":
                  # This is an IE Mac-specific comment; leave this one and the
                  # following one alone.
                  comment_start = comment_end + 2
                  iemac = True
              elif iemac:
                  comment_start = comment_end + 2
                  iemac = False
              elif not preserve:
                  css = css[:comment_start] + css[comment_end + 2:]
              else:
                  comment_start = comment_end + 2
          comment_start = css.find("/*", comment_start)
  
      return css
docs: Remove all CSS comment blocks.