diff --git a/packages/block-library/src/code/block.json b/packages/block-library/src/code/block.json
index d9f37ed061f808..e6a0c94e51ba37 100644
--- a/packages/block-library/src/code/block.json
+++ b/packages/block-library/src/code/block.json
@@ -10,6 +10,7 @@
 		}
 	},
 	"supports": {
-		"anchor": true
+		"anchor": true,
+		"fontSize": true
 	}
 }
diff --git a/packages/block-library/src/code/style.scss b/packages/block-library/src/code/style.scss
index 3961cfbe8e7d96..8d7a74d1471b46 100644
--- a/packages/block-library/src/code/style.scss
+++ b/packages/block-library/src/code/style.scss
@@ -1,5 +1,9 @@
 // Provide a minimum of overflow handling.
-.wp-block-code code {
-	white-space: pre-wrap;
-	overflow-wrap: break-word;
+.wp-block-code {
+	font-size: var(--wp--preset--font-size--extra-small, 0.9em);
+
+	code {
+		white-space: pre-wrap;
+		overflow-wrap: break-word;
+	}
 }
diff --git a/packages/block-library/src/code/theme.scss b/packages/block-library/src/code/theme.scss
index be1469328db3dc..4dfc5a41a988e3 100644
--- a/packages/block-library/src/code/theme.scss
+++ b/packages/block-library/src/code/theme.scss
@@ -1,6 +1,5 @@
 .wp-block-code {
 	font-family: $editor-html-font;
-	font-size: 0.9em;
 	color: $gray-900;
 	padding: 0.8em 1em;
 	border: 1px solid $gray-300;