text-combine-upright:digits followed by a number from 2 to 4, set on a parent element, will make up to that number of digits run horizontally in vertical text, without special markup, but not longer ones.

[r12a]

Test link(s):

text-combine-upright:digits 2

text-combine-upright:digits 3

text-combine-upright:digits 4

Results:

• Gecko: ❌ No numbers run horizontally. Browser: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:94.0) Gecko/20100101 Firefox/94.0
• Blink: ❌ No numbers run horizontally. _Browser: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_157) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36
• Webkit: ❌ No numbers run horizontally. _Browser: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_157) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.1 Safari/605.1.15

Related tests: Vertical text