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From: #7639 (comment)
In reviewing the last-baseline behaviour for multi-col we discovered that the first-baseline behaviour of multicol is inconsistent.
For example:
https://www.software.hixie.ch/utilities/js/live-dom-viewer/?saved=10862
<!DOCTYPE html>
<div style="display: flex; align-items: baseline; border: solid 5px;">
<div style="background: lime;">baseline</div>
<div style="columns: 2; background: cyan;">
<div style="height: 50px;"></div>
line1<br>line2<br>line3<br>line4<br>line5
</div>
</div>And:
https://www.software.hixie.ch/utilities/js/live-dom-viewer/?saved=10863
<!DOCTYPE html>
<div style="display: flex; align-items: baseline; border: solid 5px;">
<div style="background: lime;">baseline</div>
<div style="columns: 2; background: cyan;">
<div style="height: 100px;"></div>
line1<br>line2<br>line3<br>line4<br>line5
<div style="height: 20px;"></div>
</div>
</div>Currently all engines take the first-baseline from the "first" column - if there isn't a baseline within that column we'll produce no baseline for the entire multicol.
Is this desired?
Two options which are better (IMO) than the status quo.
- As @mstensho suggests take the highest baseline from the entire multicol (including spanners for example). This makes it symmetrical with last-baseline (taking the lowest).
- Take the first-baseline from the first column/span with a baseline. With this approach for example number 2 the baseline will be the first-baseline of the 2nd column.
Ian