The new CSS border-spacing does what Grid::(row|column)_spacing and Box::spacing already did, i.e. controlling the space added between child widgets, so it’s not a replacement for Container::border-width.
The new CSS border-spacing does what Grid::(row|column)_spacing and Box::spacing already did, i.e. controlling the space added between child widgets, so it’s not a replacement for Container::border-width.