diff -r 48c4eec2b7e6 -r 8c2e4d02f4ef wp/wp-includes/blocks/embed/editor.css
--- a/wp/wp-includes/blocks/embed/editor.css	Fri Sep 05 18:40:08 2025 +0200
+++ b/wp/wp-includes/blocks/embed/editor.css	Fri Sep 05 18:52:52 2025 +0200
@@ -7,6 +7,9 @@
   display:flex;
   justify-content:center;
 }
+.wp-block-embed .wp-block-embed__placeholder-input{
+  flex:1 1 auto;
+}
 .wp-block-embed .components-placeholder__error{
   word-break:break-word;
 }