<!DOCTYPE html> <html> <head> <link rel="author" title="Myles C. Maxfield" href="mailto:mmaxfield@apple.com"/> <link rel="help" href="https://drafts.csswg.org/css-fonts-4/#standard-font-families"/> <link rel="mismatch" href="standard-font-family-14-notref.html"/> <meta name="assert" content="ui-serif in @font-face works"/> <style> @font-face { font-family: "AppleSystemUISerif"; src: local("ui-serif"); } </style> </head> <body> <div> <div style="display: inline-block; font: 72px 'AppleSystemUISerif';">HeJllo</div> </div> </body> </html>