[css-align] Add shorthands for alignment properties #595
Description
Can't find where this was originally filed, but there was a request to add shorthands for the alignment properties, e.g. align-items+justify-items = foo-items.
foo-items: <'align-items'> <'justify-items'>?
foo-self: <'align-self'> <'justify-self'>?
foo-content: <'align-content'> <'justify-content'>?
Name "foo"!
[Suggestions so far are "arrange" and "place".]