글로벌 서비스를 하게 되면 겪게 될 폰트 렌더링 문제
summary
Global UI breaks from font fallbacks and metric differences across OSes and languages: baseline, cap-height and line-gap vary so the same CSS size yields different glyph boxes; CJK requires ~28k glyphs so webfonts can be 5–10MB and block rendering until downloaded. Solution: use lang attribute per element and per-language font stacks or optimized webfonts, detect problems with Cypress UI tests with screenshot diff that assert offsets, scrollWidth and clipping, and prefer system-ui vs explicit webfont stacks depending on device; injection of exact fonts into the test runner is necessary for perfect reproducibility.
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chapters (19)
- 0:00Introduction
- 1:37Font rendering issues
- 5:17Font variety unpredictability
- 6:01Font size design gaps
- 10:52Font weight language differences
- 11:38Real-world cases
- 16:02Generic fonts language settings
- 18:55System UI fonts themes
- 19:17Global site font setup
- 21:31Language attributes font rules
- 23:21CSS font control
- 24:03Webfonts optimization
- 25:30Webfont optimization importance
- 26:33UI test automation
- 27:56Cypress intro
- 29:24UI issue detection
- 30:53Layout break prevention
- 31:37Training techniques
- 32:41Live test demo
