Hacker News Reader

Nitpick: interesting how a UX website doesn’t let me resize it since the font is likely set via viewport units.

Huh, which browser? Scales flawlessly for me in Firefox. Actually one of the smoothest-scaling websites I've encountered in ages, wow. Nice!

iPhone Safari.

Judging by the comments, they set the text via viewport units only on smaller viewports.

Looks like px if my inspector isn't lying to me. Ctrl-+ and Ctrl-- work fine for me on desktop/chrome.

Firefox has always been even better because you can easily scale only the fonts.

If the website uses viewport units Firefox can’t do it either, IIRC. My guess is that the website uses vw only on “mobile”