Multi-column documents

[mrchristian]

How to:

1. print-css.rocks - not working in vivlio: https://www.print-css.rocks/lesson/lesson-two-column-with-author-box
2. Vivliostyle - https://github.com/vivliostyle/vivliostyle_doc/tree/gh-pages/samples/scholarly

[mrchristian]

See Vivlio notes: vivliostyle/vivliostyle.js#542 IMPORTANT!

also vivliostyle/vivliostyle.js#579

and https://docs.vivliostyle.org/#/supported-css-features#css-multi-column-1

[mrchristian]

Example used was found here https://www.w3.org/TR/css-page-3/#example-a4741b18 EXAMPLE 29