oddbird/css-anchor-positioning

Use Layout/Box tree order instead of DOM Tree order

Open

#209 opened on Jun 28, 2024

View on GitHub
 (0 comments) (0 reactions) (0 assignees)TypeScript (18 forks)auto 404
anchor-position-1enhancementgood first issueα alpha

Repository metrics

Stars
 (489 stars)
PR merge metrics
 (PR metrics pending)

Description

Per @mfreed7- " What matters is that the anchor element gets laid out first, and the anchored/positioned element gets laid out after that."

DOM and Layout/Box tree order are quite similar, but aren't identical. For a counter example, see https://github.com/web-platform-tests/wpt/blob/master/css/css-anchor-position/anchor-position-top-layer-005.html.

https://github.com/oddbird/css-anchor-positioning/pull/207

Related:

Contributor guide

Research direction
Identify where the DOM tree order is currently used in the polyfill and replace it with the box tree order. Refer to the linked test and spec for guidance.
Tech stack
cssjavascript
Domain
frontend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
CSSGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65