Una lectura recomanda per als interessats en la propera versió de CSS: CSS3 Advanced Layout Module.
This specification is part of level 3 of CSS and contains features to describe layouts at a high level, meant for tasks such as the positioning and alignment of “widgets” in a graphical user interface or the layout grid for a page or a window, in particular when the desired visual order is different from the order of the elements in the source document.