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w3c / iip

Documenting gaps and requirements for support of Indic languages on the Web and in eBooks.
https://w3c.github.io/iip/
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initial-letter positioning is not widely available #84

Open r12a opened 4 years ago

r12a commented 4 years ago

Having selected the correct text for highlighting, it is important to ensure proper alignment of the baseline and height of the initial letter highlight relative to the other lines of text. This doesn't work well without help from the dedicated CSS properties, initial-letters and the initial-letters-align. Unfortunately, only Safari supports the first property, and it requires the -webkit prefix, so this is still an immature feature.

Safari aligns the alphabetic baseline of the highlighted text with that on the specified number of lines. The relationship between the highlighted letters and the first line of the paragraph appears to be based on cap height, but is not clear. The requirements for that relationship are not yet really clear, despite the information in Indian Layout Requirements.

The impact here is advanced, since it is mainly needed for advanced layouts.

r12a commented 4 years ago

The first comment in this issue contains text that will automatically appear in one or more gap-analysis documents as a subsection with the same title as this issue. Any edits made to that comment will be immediately available in the document. Proposals for changes or discussion of the content can be made in comments below this point.

Relevant gap analysis documents include: _Bengali • Devanagari • Gujarati • Gurmukhi • Tamil_

xfq commented 1 year ago

Chrome also supports the first property now, per https://developer.chrome.com/blog/control-your-drop-caps-with-css-initial-letter/