added back content_block headerButtonGroup due to backwards compatibility and modified header.html.ep to fit changes
diff --git a/templates/intro.html.ep b/templates/intro.html.ep
index 1ecab62..1a5febc 100644
--- a/templates/intro.html.ep
+++ b/templates/intro.html.ep
@@ -1,15 +1,17 @@
 % layout 'main', login_active => 1;
 
+<div class="intro-container">
+  <div class="intro">
+    <p><strong>KorAP</strong> is a new Corpus Analysis Platform, suited for large, multiply annotated corpora and complex search queries independent of particular research questions.</p>
 
-<div class="intro">
-  <p><strong>KorAP</strong> is a new Corpus Analysis Platform, suited for large, multiply annotated corpora and complex search queries independent of particular research questions.</p>
+    <p><noscript>KorAP expects activated JavaScript for some features.</noscript></p>
 
-  <p><noscript>KorAP expects activated JavaScript for some features.</noscript></p>
+    <p><strong>New to KorAP?</strong> Please check out our <a id="link-guided-tour">guided tour</a> or our <%= doc_opener 'ql', begin %>tutorial<% end %>!</p>
+    
+    <!-- %= include 'announcement', lang => 'en' -->
 
-  <p><strong>New to KorAP?</strong> Please check out our <a id="link-guided-tour">guided tour</a> or our <%= doc_opener 'ql', begin %>tutorial<% end %>!</p>
-  
+    <p>KorAP is developed at the <a href="https://www.ids-mannheim.de">Leibniz Institute for the German Language</a>, member of the <a href="http://www.leibniz-gemeinschaft.de">Leibniz Association</a>. The separated modules are being published as open source at <a href="http://github.com/KorAP">GitHub</a>.</p>
+  </div>
+
   %= include 'announcement', lang => 'en'
-
-  <p>KorAP is developed at the <a href="https://www.ids-mannheim.de">Leibniz Institute for the German Language</a>, member of the <a href="http://www.leibniz-gemeinschaft.de">Leibniz Association</a>. The separated modules are being published as open source at <a href="http://github.com/KorAP">GitHub</a>.</p>
-
-</div>
+</div>
\ No newline at end of file