Index: src/wp-content/themes/twentyseventeen/assets/js/global.js
===================================================================
--- src/wp-content/themes/twentyseventeen/assets/js/global.js	(revision 40268)
+++ src/wp-content/themes/twentyseventeen/assets/js/global.js	(working copy)
@@ -208,6 +208,7 @@
 
 		adjustHeaderHeight();
 		setQuotesIcon();
+		belowEntryMetaClass( 'blockquote.alignleft, blockquote.alignright' );
 		if ( true === supportsInlineSVG() ) {
 			document.documentElement.className = document.documentElement.className.replace( /(\s*)no-svg(\s*)/, '$1svg$2' );
 		}