[css-line-grid] Added an @page caveat to line-grid

Hey all,

I added a couple of sentences to line-grid:

---
If 'line-grid' is used within an ''@page'' rule,
 the line grid is created based on the page box, not the page area.
 This allows all pages of a document to share a common grid,
 even if page margins, border and/or padding change.
 If a line grid is needed in the page area,
 'line-grid' can be used on a top-level element (such as body)
 that is flowed into the page area.

--- 

This is meant to cover the use-case of preventing see-through in printed
double-sided pages, without introducing a named grid.

Thanks,

Alan

Received on Thursday, 16 October 2014 01:12:33 UTC