Go version

latest

Output of go env in your module/workspace:

Does not apply 

Chrome version 120.0.6099.230
on Android Samsung A53

What did you do?

Open https://go.dev/play/p/wllkgRAtd4a on an android phone

What did you see happen?

Line numbers greater than 9 on the left are garbled

What did you expect to see?

Lines numbers greater than 9 should be readable.