Guides
Font Fallback and Tofu: Why Characters Display as Empty Boxes
Understand font fallback — why characters render as empty boxes (tofu), how to build robust font stacks, unicode-range subsetting, and more.
Box Drawing Characters: Building Text-Based UI with Unicode
Use Unicode box drawing characters to build tables, borders, and text-based interfaces — the complete reference with copy-paste examples and CSS tips.
CJK Web Typography: Chinese, Japanese, and Korean Text on the Web
Master CJK web typography — font stacks, line breaking rules, ruby annotation, vertical writing, CSS text-spacing, and mixed-script layout techniques.
Whitespace Characters in Web Development: Beyond the Space Bar
Master all Unicode whitespace characters for web development — non-breaking space, thin space, em space, zero-width characters, and CSS white-space control.
Ligatures in Web Typography: From fi to Modern OpenType Features
Master web ligatures — standard ligatures (fi, fl), discretionary ligatures, CSS font-feature-settings, OpenType features, and accessibility implications.