Modern Japanese editorial publications often combine JIS2004 kanji stroke standards with proportional kana spacing to achieve polished, contemporary typographic textures. The OpenType jp04 feature tag paired with proportional metrics optimizes kana glyph spacing and modern kanji stroke forms simultaneously. Safari Web Inspector provides native typographic tools to preview and audit JIS04 proportional typography on macOS.
Typographical Role of JIS04 Proportional Forms
While JIS2004 standardizes kanji stroke shapes, setting kana with proportional metrics eliminates awkward whitespace gaps around phonetic characters. Activating font-feature-settings: "jp04" 1, "pkna" 1; ensures Apple’s CoreText layout engine renders modern stroke cuts tailored specifically for editorial headlines.
Configuring JIS04 Typography in CSS
Implement JIS04 typography in your stylesheet:
.modern-editorial {
font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
font-feature-settings: "jp04" 1, "pkna" 1;
font-variant-east-asian: jis04 proportional-width;
line-height: 1.8;
}Inspecting Features in Safari Web Inspector
- Open the webpage containing modern Japanese typography in Safari.
- Right-click the target paragraph and choose Inspect Element.
- Switch to the Font tab in Web Inspector’s right pane.
- Locate JIS2004 Forms (jp04) and Proportional Kana (pkna) under the Features list.
- Toggle the switches to observe live glyph stroke and spacing alterations rendered by CoreText across the character sequence.
Accessible Semantic Text Integrity
Because OpenType substitutions operate exclusively at the graphic layout layer, the accessibility tree retains standard semantic text representation, ensuring optimal search indexing and screen reader performance.