/css-gap-decorations/ -- Right column wraps into left column

[mikehoffms]

1. column-wrap is broken at
   https://microsoftedge.github.io/Demos/css-gap-decorations/daily-css-news.html

The bottom of Right col is rendered at bottom of Left col:

2. Where is this demo doc'd? The Readme for set of demos https://github.com/MicrosoftEdge/Demos/blob/main/css-gap-decorations/README.md should link to docs or state how to use this demo. Could create a Readme for each .html demo.