corretto background ubuntu kylin

uitwww/templates/pages/derivate/index.html

@@ -80,7 +80,7 @@
             <iframe src="https://www.youtube.com/embed/atBXTU0Sv5w" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
         </div>
     </div>
-    <div class="row background-wallpaper ubuntu-kylin">
+    <div class="row background-wallpaper ubuntukylin">
         <div class="col">
             <h1>Ubuntu Kylin</h1>
             <p>

uitwww/templates/pages/derivate/ubuntu-kylin.html

@@ -22,7 +22,7 @@
 {% block title %}Ubuntu Kylin{% endblock %}
 {% block content %}
 <div class="page">
-    <div class="row background-wallpaper ubuntu-kylin">
+    <div class="row background-wallpaper ubuntukylin">
         <div class="col">
             <h1 class="text-center">Ubuntu Kylin</h1>
             <p class="intro text-center"><a href="https://www.ubuntukylin.com/index.php?lang=en" target="_blank">Ubuntu Kylin</a> è la versione di Ubuntu basata sull'ambiente grafico <a href="https://www.ukui.org/" target="_blank">UKUI</a>.</p>