Two column stack, split into one fixed size column and one fluid column. Control what happens to the layout at different screen sizes.
Similar to the default float stack that ships with the stacks plugin, but Split has a fixed size column in pixels, so it's more predictable when screen sizes change.
You decide when the two columns should react to ever decreasing screen size. When the columns react, you decide what happens. Should the left column go over the right, or under the right, or just be completely hidden on small screens.
After the columns have reacted to a smaller screen, you decide how the text lays out. Should it continue to lay out exactly the same way, or should it all now be centralised.
A clean fresh intuitive user interface, and a stack that we wished we'd had to hand on many occasions in the past.