This page contains the issues that are not yet listed in the specification and the resolutions for issues that were in the spec. but got resolved.

Link to current Working Draft:http://www.w3.org/TR/css3-grid-layout/

Link to current Editor's draft: http://dev.w3.org/csswg/css3-grid-align/

Grid-layer vs. z-index property for Grid

= Summary: =

Grid-layer is currently used to control the stacking of grid items in a grid element; one example of this would be using Grid to build a range control where the “thumb” of the control is displayed on top of the underlying track. However, grid-layer is in many ways similar to the existing z-index property. Is a separate property needed, or can z-index replace the grid-layer property?

= Proposal: =

Z-index should be used to replace the grid-layer property. Specifically, in cases where Grid Items overlap, z-index provides control over the drawing order of Grid Items. Both Grid elements and Grid Items generate a stacking context as described for floats (step 5, section 14) in the CSS3 Box Model. Note that this would imply that z-index applies to statically positioned Grid Items.

Note also that this change has been previously discussed on the www-styling mailing list.