Bug 251862 - column-count children top position
Summary: column-count children top position
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: Safari 16
Hardware: Mac (Apple Silicon) macOS 13
: P2 Major
Assignee: Nobody
URL: https://ctk31.digiair.ru/html/index.php
Keywords: BrowserCompat, InRadar
Depends on:
Blocks:
 
Reported: 2023-02-07 09:49 PST by Pavel
Modified: 2023-09-21 06:24 PDT (History)
5 users (show)

See Also:

Attachments
Here the child UL should be shown immediately to the right of the parent (1.40 MB, image/png)
2023-02-07 09:49 PST, Pavel 		no flags Details
Test reduction (271 bytes, text/html)
2023-02-07 21:07 PST, zalan 		no flags Details
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Description Pavel 2023-02-07 09:49:29 PST 
Created attachment 464888 [details]
Here the child UL should be shown immediately to the right of the parent

The output height of the child element is based on display: grid, although it should be based on the column-count value based on the position of the parent
Comment 1 Radar WebKit Bug Importer 2023-02-07 19:51:13 PST 
<rdar://problem/105160013>
Comment 2 zalan 2023-02-07 21:07:53 PST 
Created attachment 464903 [details]
Test reduction

It looks like WebKit incorrectly (static) position the out-of-flow block level box when it's inside a multicolumn context.