code: public String getTextDecorationString()
      {
          if (textDecoration.isEmpty())
              return "none";
          else
          {
              StringBuilder ret = new StringBuilder();
              for (CSSProperty.TextDecoration dec : textDecoration)
              {
                  if (ret.length() > 0)
                      ret.append(' ');
                  ret.append(dec.toString());
              }
              return ret.toString();
          }
      }
docs: Returns the text decoration used for the box.
  @return <code>none</code> or a string of space separated keywords <code>underline</code>, <code>overline</code>, <code>line-through</code> or <code>blink</code>