code: @Override
      public boolean containsHighlightCodeBlock(String content) {
          return StringUtils.contains(content, "<pre class='brush:")
                  || StringUtils.contains(content, "<pre class=\"brush:");
      }
docs: /* (non-Javadoc)
  @see org.opoo.press.converter.Highlighter#containsHighlightCodeBlock(java.lang.String)