code: def _get_styles(self, style_urls, asset_url_path):
          
          styles = []
          for style_url in style_urls:
              urls_inline = STYLE_ASSET_URLS_INLINE_FORMAT.format(
                  asset_url_path.rstrip('/'))
              asset_content = self._download(style_url)
              content = re.sub(urls_inline, self._match_asset, asset_content)
              styles.append(content)
  
          return styles
docs: Gets the content of the given list of style URLs and
          inlines assets.