<!doctype html> <html lang="zh"> <meta charset="utf-8"> <title>CSS Test Reference</title> <link rel="stylesheet" href="/fonts/ahem.css"> <style> @font-face { font-family: mplus; src: url(/fonts/mplus-1p-regular.woff); size-adjust: 50%; /* cause mismatch even if system-ui maps to M+ */ } p { font-family: Ahem, mplus, serif; font-size: 4em; } </style> <p>直</p>