@Override
      public void handleStartTag(HTML.Tag t, MutableAttributeSet a, int pos) {
        String tagName = t.toString();
        SimpleTextAttributes attributesByTag = myStyleTagHandler.calcAttributes(t, a);
        if (attributesByTag != null) {
          SimpleTextAttributes newAttributes = merge( attributesStack.peek(), attributesByTag);
          attributesStack.push(tagName, newAttributes);
        }
      }
@Override
      public void handleStartTag(HTML.Tag t, MutableAttributeSet a, int pos)