portal: put autotopia in the ad tile

xsl/xhtml5.xsl

@@ -354,31 +354,11 @@
       <xsl:apply-templates select="item[position() = 3]"/>
 
       <!-- Advertisement -->
-      <article>
-	<!--a href="https://it4refugees.noblogs.org/"
-           style="background: url('images/news/i4r-logo.png') 50% 50% no-repeat">
-	  <h3>Internet for Refugees</h3>
-	  <p class="footer">HelferInnen gesucht!</p>
-	</a-->
-	<a href="https://c3d2.de/news/35c3-chaos-zone.html" style="background: url('images/Chaoszone.png') 50% 50% no-repeat; background-size: contain; background-color: #191919">
-	  <h3>ChaosZone @ 35C3</h3>
-          <!--<p style="font-size: 200%; font-weight: bold; color: rgba(0, 0, 0, 0.5); text-align: center; margin: 0; padding: 1.5em 0 0">Datenspuren<br /><br />Save the date!</p>-->
+      <article style="background-image: url('autotopia/autotopia.png')">
+        <a href="https://autotopia.c3d2.de/">
+          <h3>Autotopia</h3>
 	  <p class="footer">Help wanted!</p>
-	</a>
-        <!--<a style="background: linear-gradient(to bottom, rgba(255,255,255,0.75) 0%
-            ,rgba(255,255,255,0.75) 100%)
-          , url('images/Chaoszone.svg') no-repeat;
-          background-color: white;
-          background-size: contain;"
-          href="https://events.ccc.de/congress/2017/wiki/index.php/Assembly:ChaosZone">
-        <h3>
-          Chaos Communication Congress
-        </h3>
-        <p style="font-size: 450%; font-weight: bold; color: rgba(0, 0, 0, 0.5); text-align: center; margin: 0; padding: 1.5em 0 0">34C3</p>
-        <p class="footer">
-          Join our Assembly:ChaosZone
-        </p>
-        </a>-->
+        </a>
       </article>
 
       <!-- Items 4..5 -->