diff --git a/src/components/PageContent/PageContent.astro b/src/components/PageContent/PageContent.astro
index 73b33f8363..07be96ec6e 100644
--- a/src/components/PageContent/PageContent.astro
+++ b/src/components/PageContent/PageContent.astro
@@ -64,14 +64,6 @@ const headerLabels = {
 	} -->
 	<article class="pt-(--spacing-md) pb-12">
 		{
-			/*
-			 * THE MASTHEAD IS A BANNER, THE PROSE IS A COLUMN. The header is NOT in
-			 * `px-container` — it spans the content column edge to edge, so the rule it
-			 * closes on reads as the page's own horizon instead of a line under the
-			 * title. Its words still land on the container's measure, because
-			 * `doc-page-banner` pads it by exactly what `px-container` would have
-			 * (see the style below), so nothing has to fight the component's own border.
-			 */
 			content.page_header !== false && (
 				<DocPageHeader
 					class="doc-page-banner mb-8"
@@ -87,7 +79,7 @@ const headerLabels = {
 				/>
 			)
 		}
-		<section class="px-container">
+		<section class="layout-boundary-inline">
 			<ReadableContent client:load>
 				{
 					isFallback && (
@@ -102,13 +94,6 @@ const headerLabels = {
 		</section>
 
 		{
-			/*
-			 * The pair carries its own column and its own close: `px-container` is the
-			 * measure the prose above it takes, and `pt-12` is the 48 that closes a
-			 * section in the prose contract. It used to sit in an `aside` — a second
-			 * landmark around a `nav` that already has one — under an `hr` that spent
-			 * another 48 saying the same thing.
-			 */
 			(previous || next) && (
 				<DocPagination
 					previous={previous && { title: previous.text, href: previous.link }}