User blog comment:CzechOut/How Portable Infoboxes Can Change Your Style/@comment-434561-20160711124546/@comment-26402117-20160711131359

I'd like to say that at least half my own CSS was never designed for mobile and will probably break something like my PSP's browser permanently.

Now, customisation of the mobile skin doesn't need CSS so much. Like a mobile theme designer that allows changing infobox accent colors and the mobile wiki header from the default blue coloring.