Ticket #60239: 60239.patch

wp-content/themes/twentysixteen/css/blocks.css

@@ -477 +477 @@
 .has-yellow-background-color {
         background-color: #ffef8e;
 }
+
+.wp-block-quote{
+        border-left-width: 4px!important;
+}
+ No newline at end of file