docs: protected Element createRectangleElement(float x, float y, float width, float height, boolean stroke, boolean fill)
      {
          float lineWidth = transformWidth(getGraphicsState().getLineWidth());
      	float wcor = stroke ? lineWidth : 0.0f;
          float strokeOffset = wcor == 0 ? 0 : wcor / 2;
          width = width - wcor < 0 ? 1 : width - wcor;
          height = height - wcor < 0 ? 1 : height - wcor;
  
          StringBuilder pstyle = new StringBuilder(50);
      	pstyle.append("left:").append(style.formatLength(x - strokeOffset)).append(';');
          pstyle.append("top:").append(style.formatLength(y - strokeOffset)).append(';');
          pstyle.append("width:").append(style.formatLength(width)).append(';');
          pstyle.append("height:").append(style.formatLength(height)).append(';');
      	    
      	if (stroke)
      	{
              String color = colorString(getGraphicsState().getStrokingColor());
          	pstyle.append("border:").append(style.formatLength(lineWidth)).append(" solid ").append(color).append(';');
      	}
      	
      	if (fill)
      	{
              String fcolor = colorString(getGraphicsState().getNonStrokingColor());
      	    pstyle.append("background-color:").append(fcolor).append(';');
      	}
      	
          Element el = doc.createElement("div");
          el.setAttribute("class", "r");
          el.setAttribute("style", pstyle.toString());
          el.appendChild(doc.createEntityReference("nbsp"));
          return el;
      }