w3c / w3c/csswg-drafts

[css-align-3][css-multicol] How is the last-baseline of a multi-col determined?

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Closed Accepted by CSSWG Resolution Commenter Response Pending css-align-3 css-multicol-2
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Description

Is it the last-baseline of the first fragmentainer or the last?

Today in an inline-context the baseline is always synthesized from the block-end border-box edge. (We likely aren't restricted by compat here however).

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading the css-align-3 and css-multicol specifications, then trace how last-baseline and fragmentainers are defined for multi-column layout. Resolve whether the baseline comes from the first or last fragmentainer, document the decision in the relevant specification text, and confirm the wording is consistent with the existing inline-context rule.

Written by the indexing model from the issue text.

Assessment

Tech stack
css
Domain
frontend, web-dev
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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