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[css-text-decor-4] #10066 Describe extent of ink overflow #10085

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[css-text-decor-4] #10066 Describe extent of ink overflow #10085

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20 changes: 20 additions & 0 deletions css-text-decor-4/Overview.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@ spec:css-text-3; type:dfn; text:character
spec:fill-stroke-3; type:property;
text: fill
text: stroke
spec:css-backgrounds-3; type:property; text:box-shadow
</pre>

<h2 id="intro">
Expand Down Expand Up @@ -1998,6 +1999,9 @@ Text Shadows: the 'text-shadow' property</h2>
creates rounded, rather than sharp, corners.
Negative spread values are invalid.

The extent of [=ink overflow=] from 'text-shadow' is determined
in the same manner as for 'box-shadow'.</li>

ISSUE(7250): Leave corner shaping undefined?

<dfn>Outer text shadows</dfn>
Expand Down Expand Up @@ -2068,6 +2072,22 @@ Overflow of Text Decorations</h3>
they do not extend the <a>scrollable overflow region</a>.
[[css-overflow-3]]

<div class="example">
<p>The example below demonstrates ink overflow from text decorations.</p>

<p class="figure" style="margin:1ch 0 2ch 0;font-size:10rem;text-decoration-line:underline overline;text-decoration-color:#ff0000;text-decoration-thickness:1ch;text-underline-position:under;text-underline-offset:1ch;text-emphasis-style:double-circle;text-emphasis-color:blue;text-shadow:0px 0px 1ch red"><span style="text-emphasis-position:over;background:#aaa">h</span><span style="text-emphasis-position:under;background:#ccc">g</span></p>
</div>

<div class="note">
<p>The extent of [=ink overflow=] from text decorations is UA-defined and may
vary between implementations.
Where supported, use of the <i>from-font</i> keyword may improve
the consistency of ink overflow extents between implementations,
provided that a consistent font definition is used across platforms.
For more details, refer to [[CSS-TEXT-3#text-ink-overflow]].
</p>
</div>

<h2 class="no-num" id="acknowledgements">
Appendix A: Acknowledgements</h2>

Expand Down