diff --git a/wp-content/themes/twentynineteen/sass/blocks/_blocks.scss b/wp-content/themes/twentynineteen/sass/blocks/_blocks.scss
index 8b82a5c014..65acd0f19c 100644
--- a/wp-content/themes/twentynineteen/sass/blocks/_blocks.scss
+++ b/wp-content/themes/twentynineteen/sass/blocks/_blocks.scss
@@ -239,6 +239,14 @@
 		}
 	}
 
+	.wp-block-buttons,
+	.wp-block-button {
+
+		&.has-custom-font-size .wp-block-button__link {
+			font-size: 1em;
+		}
+	}
+
 	//! Latest posts, categories, archives
 	.wp-block-archives,
 	.wp-block-categories,
diff --git a/wp-content/themes/twentynineteen/style-rtl.css b/wp-content/themes/twentynineteen/style-rtl.css
index 6830dfa7f1..411998ad60 100644
--- a/wp-content/themes/twentynineteen/style-rtl.css
+++ b/wp-content/themes/twentynineteen/style-rtl.css
@@ -5563,6 +5563,11 @@ body.page .main-navigation {
   color: #111;
 }
 
+.entry .entry-content .wp-block-buttons.has-custom-font-size .wp-block-button__link,
+.entry .entry-content .wp-block-button.has-custom-font-size .wp-block-button__link {
+  font-size: 1em;
+}
+
 .entry .entry-content .wp-block-archives,
 .entry .entry-content .wp-block-categories,
 .entry .entry-content .wp-block-latest-posts {
diff --git a/wp-content/themes/twentynineteen/style.css b/wp-content/themes/twentynineteen/style.css
index 62ae6048b4..89e7299d26 100644
--- a/wp-content/themes/twentynineteen/style.css
+++ b/wp-content/themes/twentynineteen/style.css
@@ -5575,6 +5575,11 @@ body.page .main-navigation {
   color: #111;
 }
 
+.entry .entry-content .wp-block-buttons.has-custom-font-size .wp-block-button__link,
+.entry .entry-content .wp-block-button.has-custom-font-size .wp-block-button__link {
+  font-size: 1em;
+}
+
 .entry .entry-content .wp-block-archives,
 .entry .entry-content .wp-block-categories,
 .entry .entry-content .wp-block-latest-posts {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index e412c86c7d..21901dca0b 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-alpha-58198';
+$wp_version = '6.6-alpha-58199';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.