Index: wp-content/themes/twentyseventeen/assets/css/editor-blocks.css
===================================================================
--- wp-content/themes/twentyseventeen/assets/css/editor-blocks.css	(revision 53444)
+++ wp-content/themes/twentyseventeen/assets/css/editor-blocks.css	(working copy)
@@ -438,6 +438,11 @@
 	padding: 0;
 }
 
+.block-editor-block-list__layout ol.has-background,
+.block-editor-block-list__layout ul.has-background {
+	padding: 1.25em 2.375em;;
+}
+
 /* Quote styles */
 
 .editor-block-list__block blockquote p {