From the teams investigating implementations:

I had one follow up question for the TC from this last draft (CD 07). It has to do with the addition of text to section 20.349:

20.349style:shadow
The style:shadow attribute specifies a shadow effect.
The defined values for this attribute are those defined in §7.16.5 of [XSL], except the value inherit.

The shadow effect is not applied to the text content of an element, but depending on the element where the attribute appears, to a paragraph, a text box, a page body, a header, a footer, a table or a table cell.

My question: what does it mean to have a shadow on a paragraph but not the text of that paragraph?