Cloudflare fetched the original article and streamed it through HTMLRewriter to apply an entirely new visual system without rebuilding the source page.
// request.cf · coarse context
A page that knows where it met you.
Only coarse request metadata is shown. This demo does not display or persist visitor IP addresses.
Number of columns. Required parameter to get any columns. Works only above 640px (width constraint is for mobile support). Currently only works with the value 2. "Automatic" columns may be supported at some point, see CSS tricks, so extending this too much probably doesn't make a ton of sense.