[css-inline-3] Floor line gap metric at zero. #5064

Author: fantasai

css-inline-3/Overview.bs

@@ -511,6 +511,8 @@ Line Gap Metrics</h4>
 	Note: In OpenType, the [=line gap metric=] can be found
 	as <code>sTypoLineGap</code> or <code>hhea.lineGap</code>.
 
+	UAs must floor the [=line gap metric=] at zero.
+
 <h3 id="baseline-tables">
 Baselines of Glyphs and Boxes</h3>
 
@@ -2970,6 +2972,13 @@ A.3: Synthesizing Baselines for Atomic Inlines</h3>
 <h2 class="no-num" id="changes">
 Changes</h2>
 
+	Changes since the
+	<a href="https://www.w3.org/TR/2022/WD-css-inline-3-20221114/">14 November 2022 Working Draft</a>:
+	<ul>
+		<li>Require UAs to floor the [=line gap metric=] at zero.
+			(<a href="https://github.com/w3c/csswg-drafts/issues/5064">Issue 5064</a>)
+	</ul>
+
 	Changes since the
 	<a href="https://www.w3.org/TR/2020/WD-css-inline-3-20200827/">28 August 2020 Working Draft</a>:
 	<ul>