[Demo] Issue 6047 - Missing background on uninstallation page

static/css/defaults.css

 /*!
  * This file is part of website-defaults
  * Copyright (C) 2016-present eyeo GmbH
  *
  * website-defaults is free software: you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
  * website-defaults is distributed in the hope that it will be useful,
@@ skipping 221 matching lines @@
   width: 1px;
   height: 1px;
   margin: -1px;
   padding: 0;
   border: 0; }
 
 /* Unstyled elements
  ******************************************************************************/
 .unstyled,
 .unstyled *,
-.content .unstyled {
+.content .unstyled,
+.content .unstyled * {
   margin: 0;
   padding: 0;
   border: 0;
   background: none; }
 
-ul.unstyled {
+.unstyled ul,
+ul.unstyled,
+.unstyled li,
+li.unstyled {
   list-style: none; }
 
 /* Backgrounds
  ******************************************************************************/
 .bg-primary {
   color: #fff;
   background-color: #000; }
 
 .bg-secondary {
   color: #eee;
   background-color: #424242; }
 
 .bg-accent {
   color: #e3f2fd;
   background-color: #0d47a1; }
 
 .bg-error {
   color: #ffebee;
   background-color: #b71c1c; }
 
+/* Lead
+ ******************************************************************************/
+.lead {
+  font-size: 1.25em; }
+
+@media (max-width: 767px) {
+  .lead {
+    font-size: 1.125em; } }
+
 /*******************************************************************************
  * Base styles
  ******************************************************************************/
 html {
   color: #212121;
   background-color: #fff;
   font-family: sans-serif;
   line-height: 1.5; }
 
 /*******************************************************************************
@@ skipping 238 matching lines @@
 [type="submit"]::-moz-focus-inner {
   padding: 0px;
   border-style: none; }
 
 /* Restore the focus styles unset by the previous rule. */
 button:-moz-focusring,
 [type="button"]:-moz-focusring,
 [type="reset"]:-moz-focusring,
 [type="submit"]:-moz-focusring {
   outline: 1px dotted ButtonText; }