I am using the native countdown timer of CIO in an Email Template. It provides only basic customization to it like font style, color and background. I want make the time more attractive using some CSS property. but I am not able do that. Is there any way to do so.

{% countdown point:64 font:roboto weight:light fg:000000 bg:f2f6f9 time:"2024-01-04 12:00:00 (GMT)" locale:en looping:true resolution:S frames:2 %}

Also, I want to change the font family of the Email body. The documentation is saying it will be implemented on the limit email platform except Gmail. Is there any way to change font family for Gmail also