diff --git a/wp-content/themes/twentyseventeen/assets/css/editor-blocks.css b/wp-content/themes/twentyseventeen/assets/css/editor-blocks.css
index c17df295a3..60907122cd 100644
--- a/wp-content/themes/twentyseventeen/assets/css/editor-blocks.css
+++ b/wp-content/themes/twentyseventeen/assets/css/editor-blocks.css
@@ -458,15 +458,19 @@ html[lang="th"] .edit-post-visual-editor * {
 	margin-top: 0.5em;
 }
 
-/* Caption styles*/
+/* Caption styles */
 
-[class^="wp-block-"]:not(.wp-block-gallery) figcaption {
+[class^="wp-block-"]:not(.wp-block-gallery) > figcaption,
+[class*=" wp-block-"]:not(.wp-block-gallery) > figcaption {
 	font-style: italic;
 	margin-bottom: 1.5em;
 	text-align: left;
 }
 
-.rtl [class^="wp-block-"]:not(.wp-block-gallery) figcaption {
+.rtl [class^="wp-block-"]:not(.wp-block-gallery) > figcaption,
+.rtl [class*=" wp-block-"]:not(.wp-block-gallery) > figcaption,
+[dir="rtl"] [class^="wp-block-"]:not(.wp-block-gallery) > figcaption,
+[dir="rtl"] [class*=" wp-block-"]:not(.wp-block-gallery) > figcaption {
 	text-align: right;
 }
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 3f0ade7568..4cd52d7cc2 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-alpha-58206';
+$wp_version = '6.6-alpha-58207';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.