diff --git a/packages/block-library/src/post-content/style.scss b/packages/block-library/src/post-content/style.scss
new file mode 100644
index 00000000000000..82495159d01ded
--- /dev/null
+++ b/packages/block-library/src/post-content/style.scss
@@ -0,0 +1,4 @@
+// Required to ensure that subsequent blocks clear floats inside entry content.
+.wp-block-post-content {
+	overflow: auto;
+}
diff --git a/packages/block-library/src/style.scss b/packages/block-library/src/style.scss
index 2f64d28818e5af..f24aff07f9faea 100644
--- a/packages/block-library/src/style.scss
+++ b/packages/block-library/src/style.scss
@@ -31,6 +31,7 @@
 @import "./post-title/style.scss";
 @import "./preformatted/style.scss";
 @import "./pullquote/style.scss";
+@import "./post-content/style.scss";
 @import "./post-template/style.scss";
 @import "./query-pagination/style.scss";
 @import "./quote/style.scss";