Index: src/wp-content/themes/twentytwenty/assets/js/index.js
===================================================================
--- src/wp-content/themes/twentytwenty/assets/js/index.js	(revision 46992)
+++ src/wp-content/themes/twentytwenty/assets/js/index.js	(working copy)
@@ -294,7 +294,7 @@
 	},
 
 	makeFit: function() {
-		document.querySelectorAll( 'iframe, object, video' ).forEach( function( video ) {
+		document.querySelectorAll( '.entry-content iframe, .entry-content object, .entry-content video' ).forEach( function( video ) {
 			var ratio, iTargetWidth,
 				container = video.parentNode;