[source] (https://w3c.github.io/i18n-drafts/articles/typography/justification.en) [en] Another justification mode for Han is more embedded proportional scripts to be padded with equal space of both sides (mid-sentence) or one side (start of line) and between words, such that the total width is [n-char + (n-1)-interword space] so the character grid is preserved, with hanging punctuation.
[source] (https://w3c.github.io/i18n-drafts/articles/typography/justification.en) [en] Another justification mode for Han is more embedded proportional scripts to be padded with equal space of both sides (mid-sentence) or one side (start of line) and between words, such that the total width is [n-char + (n-1)-interword space] so the character grid is preserved, with hanging punctuation.