CSS WG Blog Updated CSS Inline Layout Level 3

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Updated CSS Inline Layout Level 3

By fantasai June 4, 2020 (Permalink)
Categories: publications

The CSS Working Group has published an updated Working Draft of CSS Inline Layout Level 3. This module describes the block-axis alignment and sizing of inline-level boxes and text. It also adds a special layout mode for drop caps and similar initial letter styling.

This is a significant update which pulls in some major new features, including control over whether to use a box’s first/last line’s baseline for baseline alignment (baseline-source) and new proposals for altering how line heights are calculated and for controlling leading (line-sizing and leading-trim, currently). Note that these proposals are in early drafting stages and are expected to change significantly.

The draft now also includes a high-level description of the inline layout model and imports prose from CSS2 defining how line heights are calculated.

All significant changes since the last Working Draft are listed in the Changes section.

Plans for the next update include working on major design questions on line-sizing and leading-trim (possibly redesigning them significantly), filling out missing details on how vertical-align and related features actually work (copying from CSS2), and describing more rigorously the initial letter layout model.

Please send feedback by either filing an issue in GitHub (preferable) or sending mail to the (archived) public mailing list www-style@w3.org with the spec code ([css-inline]) and your comment topic in the subject line. (Alternatively, you can email one of the editors and ask them to forward your comment.)

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Last updated 2020-06-04 07:00:48