This meta-bug will be used to track syntax issues derived from the Grid Layout specification updates.
I've already identified the following syntax issues:
grid : not implemented yet.
grid-auto-position: not implemented yet
grid-template: not implemented yet
grid-template-areas: currently defined as 'grid-template'
grid-template-columns: currently defined as 'grid-definition-columns'
grid-template-rows: currently defined as 'grid-definition-rows'
We can close this now as I don't expect changes in the syntax.