Re: [csswg-drafts] [css-text-decor-4] Definition of `from-font` value for `text-decoration-thickness` (#13216)

• From: jfkthame via GitHub <noreply@w3.org>
• Date: Sat, 13 Dec 2025 17:21:12 +0000
• To: public-css-archive@w3.org
• Message-ID: <issue_comment.created-3649636914-1765646463-noreply@w3.org>

For example, in the Arial.ttf font on macOS, I find:

```
  <post>
    ...
    <underlinePosition value="-217"/>
    <underlineThickness value="150"/>
    ...
```

but

```
  <OS_2>
    ...
    <yStrikeoutSize value="102"/>
    <yStrikeoutPosition value="530"/>
    ...
```

so the `from-font` value of line-through thickness should be only 68% of the `from-font` underline thickness.

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Received on Saturday, 13 December 2025 17:21:12 UTC