[css-backgrounds] Allow multiple border images

Like for background images people may also want to define multiple
border images to create some nice frame effects.

This would require to change the syntax of ‘border-image-source’,
‘border-image-slice’, ‘border-image-width’, ‘border-image-outset’ and
‘border-image-repeat’ to take lists of values.

Sebastian

Received on Tuesday, 30 December 2014 13:13:48 UTC