diff --git a/src/wp-includes/sitemaps/class-wp-sitemaps-stylesheet.php b/src/wp-includes/sitemaps/class-wp-sitemaps-stylesheet.php
index 829e50813a..652a2b75dd 100644
--- a/src/wp-includes/sitemaps/class-wp-sitemaps-stylesheet.php
+++ b/src/wp-includes/sitemaps/class-wp-sitemaps-stylesheet.php
@@ -86,7 +86,9 @@ class WP_Sitemaps_Stylesheet {
 		<html {$lang}>
 			<head>
 				<title>{$title}</title>
-				<style>{$css}</style>
+				<style>
+					{$css}
+				</style>
 			</head>
 			<body>
 				<div id="sitemap__header">
@@ -192,7 +194,9 @@ XSL;
 		<html {$lang}>
 			<head>
 				<title>{$title}</title>
-				<style>{$css}</style>
+				<style>
+					{$css}
+				</style>
 			</head>
 			<body>
 				<div id="sitemap__header">
@@ -251,42 +255,43 @@ XSL;
 		$text_align = is_rtl() ? 'right' : 'left';
 
 		$css = <<<EOF
-		
+
 					body {
 						font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
 						color: #444;
 					}
-					
+
 					#sitemap__table {
 						border: solid 1px #ccc;
 						border-collapse: collapse;
 					}
-					
+
 			 		#sitemap__table tr td.loc {
 						/*
 						 * URLs should always be LTR.
-						 * see https://core.trac.wordpress.org/ticket/16834 and
-						 * https://core.trac.wordpress.org/ticket/49949
+						 * See https://core.trac.wordpress.org/ticket/16834
+						 * and https://core.trac.wordpress.org/ticket/49949
 						 */
 						direction: ltr;
 					}
-					
+
 					#sitemap__table tr th {
 						text-align: {$text_align};
 					}
-					
+
 					#sitemap__table tr td,
 					#sitemap__table tr th {
 						padding: 10px;
 					}
-					
+
 					#sitemap__table tr:nth-child(odd) td {
 						background-color: #eee;
 					}
-					
+
 					a:hover {
 						text-decoration: none;
 					}
+
 EOF;
 
 		/**
