code: private void internStyles(Document doc, List<ExternalCss> cssContents) {
  		Elements els = doc.select(CSS_LINKS_SELECTOR);
  		for (Element e : els) {
  			if (!TRUE_VALUE.equals(e.attr(SKIP_INLINE))) {
  				String path = e.attr(HREF_ATTR);
  				Element style = new Element(Tag.valueOf(STYLE_TAG), "");
  				style.appendChild(new DataNode(getCss(cssContents, path), ""));
  				e.replaceWith(style);
  			}
  		}
  	}
docs: Replace link tags with style tags in order to keep the same inclusion
  order
  
  @param doc
  the html document
  @param cssContents
  the list of external css files with their content