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Re: [csswg-drafts] 'line-height: normal' definition should reflect reality of determining based on fonts

From: Koji Ishii via GitHub <sysbot+gh@w3.org>
Date: Fri, 21 Apr 2017 06:05:38 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-296084448-1492754737-sysbot+gh@w3.org>
Blink does for `line-height: normal`:

1. Collect used fonts for the run.
2. For each used fonts:
  1. Compute A and D from the font metrics (note, IIUC, our A/D are slightly different from Gecko's)
  2. Compute L/2 using line spacing from the font metrics ((line spacing - (A + D)) / 2)
3. Compute the union of A' (A + L/2) and D' (D + L/2) of all used fonts.

I believe this is mostly the same as WebKit.

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Received on Friday, 21 April 2017 06:05:45 UTC

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