diff --git a/packages/block-library/src/post-content/style.scss b/packages/block-library/src/post-content/style.scss
index 96e27d04679d44..1d3e210e1210d7 100644
--- a/packages/block-library/src/post-content/style.scss
+++ b/packages/block-library/src/post-content/style.scss
@@ -1,5 +1,3 @@
-.wp-block-post-content::after {
-	content: "";
-	display: table;
-	clear: both;
+.wp-block-post-content {
+	display: flow-root;
 }