[css-align] Switch around some emphasis to help distinguish baseline content-alignment vs baseline self-alignment.

Author: fantasai

css-align/Overview.bs

@@ -590,7 +590,7 @@ Baseline Content-Alignment</h3>
 	to align the <a>alignment baseline</a> of its contents
 	with that of other baseline-aligned boxes in its <a lt="baseline-sharing group">group</a>.
 
-	The set of boxes that participate in <dfn export lt="baseline content-alignment|first-baseline content-alignment|last-baseline content-alignment">baseline content-alignment</dfn>
+	The set of boxes that participate in <a>baseline content-alignment</a>
 	depends on the layout model:
 
 	<dl>
@@ -619,9 +619,9 @@ Baseline Content-Alignment</h3>
 	it participates in first (last) <a>baseline content-alignment</a>
 	within its start-most (end-most) <a>shared alignment context</a> along that axis.
 
-	When a box participates in first (last) <a>baseline content-alignment</a>
+	When a box participates in first (last) <dfn export lt="baseline content-alignment|first-baseline content-alignment|last-baseline content-alignment">baseline content-alignment</dfn>
 	its <a>alignment subject</a> is aligned to the start (end) edge of its <a>alignment container</a>
-	and the minimum necessary extra space is added between its start (end) edge and the <a>alignment subject</a>
+	and the minimum necessary extra space is added <strong>between its start (end) edge and the <a>alignment subject</a>’s edge</strong>
 	to match its <a>alignment baseline</a> in that axis up to that of its <a>baseline-sharing group</a>.
 	See [[#align-by-baseline]].
 	This increases the intrinsic size of the box.
@@ -884,7 +884,7 @@ Baseline Self-Alignment</h3>
 	to align its <a>alignment baseline</a>
 	with other baseline-aligned boxes in its <a lt="baseline-sharing group">group</a>.
 
-	The set of boxes that participate in <dfn export lt="baseline self-alignment|first-baseline self-alignment|last-baseline self-alignment">baseline self-alignment</dfn>
+	The set of boxes that participate in <a>baseline self-alignment</a>
 	depends on the layout model:
 
 	<dl>
@@ -906,9 +906,9 @@ Baseline Self-Alignment</h3>
 	it participates in first (last) <a>baseline self-alignment</a>
 	within its start-most (end-most) <a>shared alignment context</a> along that axis.
 
-	When a box participates in first (last) <a>baseline self-alignment</a>
+	When a box participates in first (last)  <dfn export lt="baseline self-alignment|first-baseline self-alignment|last-baseline self-alignment">baseline self-alignment</dfn>
 	its <a>alignment subject</a> is aligned to the start (end) edge of its <a>alignment container</a>
-	and the minimum necessary extra space is added between its start (end) edge and the <a>alignment container</a>
+	and the minimum necessary extra space is added <strong>between its start (end) edge and the <a>alignment container</a> edge</strong>
 	to match its <a>alignment baseline</a> in that axis up to that of its <a>baseline-sharing group</a>.
 	See [[#align-by-baseline]].
 	This may increase the intrinsic size contribution of the <a>alignment subject</a>.