[css-inline-3] Make text-box-edge non-inherited

Author: fantasai

css-inline-3/Overview.bs

@@ -1407,9 +1407,11 @@ Trimming Over/Under Text: the 'text-box-trim' property</h3>
 	On [=block containers=],
 	as well as on each column of a [=multi-column container=],
 	specifies whether to trim [=half-leading=]
-	at the start/end of its content
-	to the specified 'text-box-edge' metric
-	to better match the box’s [=content edge=] to its text content.
+	at the start/end of the box's content
+	to better match its [=content edge=] to its text content.
+	The trimming edge in this case
+	is specified by the start/end 'text-box-edge' value
+	of the affected [=line box=]’s [=containing block=].
 
 	Values have the following meanings:
 
@@ -1486,7 +1488,7 @@ Text Trimming Metrics: the 'text-box-edge' property</h3>
 	Value: auto | <<text-edge>>
 	Initial: auto
 	Applies to: [=block containers=] and [=inline boxes=]
-	Inherited: no
+	Inherited: yes
 	Percentages: N/A
 	Computed value: the specified keyword
 	Animation type: discrete
@@ -1495,7 +1497,7 @@ Text Trimming Metrics: the 'text-box-edge' property</h3>
 	This property specifies the metrics to use for 'text-box-trim' effects.
 	Values have the same meanings as for 'line-fit-edge';
 	the <dfn for=text-box-edge value>auto</dfn> keyword
-	uses the value of 'line-fit-edge' on the [=root inline box=] of the the affected [=line box=],
+	uses the value of 'line-fit-edge',
 	interpreting ''line-fit-edge/leading'' (the [=initial value=]) as ''line-fit-edge/text''.
 
 	Note: This property can be set together with 'text-box-trim'
@@ -3064,6 +3066,9 @@ Changes</h2>
 
 	Changes since the <a href="https://www.w3.org/TR/2024/WD-css-inline-3-20240812/">12 August 2024 Working Draft</a>:
 	<ul>
+		<li>Made 'text-box-edge' inherit; 'text-box-trim' references
+			the relevant value applied to the affected line box(es).
+			(<a href="https://github.com/w3c/csswg-drafts/issues/10904">Issue 10904</a>)
 		<li>Defined behavior of 'text-box-trim' on [=multi-column containers=],
 			and clarified its application to (and through) other formatting contexts.
 			(<a href="https://github.com/w3c/csswg-drafts/issues/5335">Issue 5335</a>,