code: public static final StyleSheet parse(URL url, NetworkProcessor network, String encoding)
              throws CSSException, IOException {
          return getCSSParserFactory().parse(url, network, encoding, SourceType.URL, url);
      }
docs: Parses URL into StyleSheet
  
  @param url
  URL of file to be parsed
  @param network
  Network processor used for handling the URL connections
  @param encoding
  Encoding of file
  @return Parsed StyleSheet
  @throws CSSException
  When exception during parse occurs
  @throws IOException
  When file not found