I try to make difference between zero and letter 'O' in a sensitive information by adding the following css property font-variant-numeric:slashed-zero but it doesn't work.
i followed this turorial: https://developer.mozilla.org/en-US/docs/Web/CSS/font-variant-numeric, but no result.
Here you can find out what i did and also the result.
Have you any idea or alternative to solve this issue ?