[Request] Convert px to rem

[coudrak]

I think it would be good to update the less files to replace all the css px with rem values.
Most of modern projects switched to rem, like Boostrap.

[leongersen]

Thanks for your suggestion. What advantage would you see in making this migration?

Related to #1167.

[coudrak]

For example, in my case, I "zoom out" my page by 75% on mobile screens less than 360px wide, in this way:

:root {
   font-size: 75%;
}

I use Bootstrap, so everything in my page decreases, except the slider because it is in px.

[leongersen]

Right, that makes sense. Given that is would be a tricky breaking change, in particular for restyled sliders, it would be good to pick this up together with the issue linked above.