We freeze the html for a specific lineup once the dynamic rendering is complete. We then rendering this test case with collected css. From this a stable object of study.
Eric's similar experiment was a proof of concept for left-to-right scrolling that works on a phone. github lineup
To address required css definitions we tally the number and locations of element classes. enlarge github
http://ward.dojo.fed.wiki/assets/pages/new-css-test-case/tally.html HEIGHT 800
pages/new-css-test-case
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Baldur Bjarnason. mastodon
A brief history of CSS until 2016. post
The New CSS. post