Index: wp-content/themes/twentyseventeen/assets/css/editor-blocks.css
===================================================================
--- wp-content/themes/twentyseventeen/assets/css/editor-blocks.css	(revision 53101)
+++ wp-content/themes/twentyseventeen/assets/css/editor-blocks.css	(working copy)
@@ -818,3 +818,7 @@
 	margin-left: 0;
 	margin-right: 0;
 }
+.wp-block-pullquote blockquote, .wp-block-pullquote cite, .wp-block-pullquote p {
+    color: inherit!important;
+	font-size: inherit!important;
+}
Index: wp-content/themes/twentyseventeen/style.css
===================================================================
--- wp-content/themes/twentyseventeen/style.css	(revision 53101)
+++ wp-content/themes/twentyseventeen/style.css	(working copy)
@@ -4364,3 +4364,8 @@
 		padding: 0;
 	}
 }
+.wp-block-pullquote blockquote, .wp-block-pullquote cite, .wp-block-pullquote p {
+    color: inherit!important;
+	font-size: inherit!important;
+}
+