diff --git a/src/wp-includes/js/tinymce/skins/wordpress/wp-content.css b/src/wp-includes/js/tinymce/skins/wordpress/wp-content.css
index 0a0a759966..598089240a 100644
--- a/src/wp-includes/js/tinymce/skins/wordpress/wp-content.css
+++ b/src/wp-includes/js/tinymce/skins/wordpress/wp-content.css
@@ -144,6 +144,7 @@ img[data-mce-selected]::selection {
 	-webkit-box-shadow: none;
 	box-shadow: none;
 	width: 96%;
+	min-width: 96%;
 	height: 16px;
 	display: block;
 	margin: 15px auto 0;