diff --git a/wiki/pages/contribution.html b/wiki/pages/contribution.html
index e85632fccf9779da7f0e6f65e556a0b5683bf51a..7101744a7a8f2c5a8b249f5997ceda20d32548b8 100644
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@@ -11,12 +11,13 @@
     </div>
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       <div class="pagenav">
-          <div onclick="goTo(document.getElementById('one'))"><span id="subtitle1" style="color: #62D881;">Background</span></div>
-          <div onclick="goTo(document.getElementById('two'))"><span id="subtitle2" style="color: #62D881;">Problem</span></div>
+          <div onclick="goTo(document.getElementById('one'))"><span id="subtitle1" style="color: #62D881;">Introduction</span></div>
+          <div onclick="goTo(document.getElementById('two'))"><span id="subtitle2" style="color: #62D881;">Omics analysis</span></div>
           <div onclick="goTo(document.getElementById('three'))"><span id="subtitle3" style="color: #62D881;">Motivation</span></div>
-          <div onclick="goTo(document.getElementById('four'))"><span id="subtitle4" style="color: #62D881;">Solution</span></div>
-          <div onclick="goTo(document.getElementById('five'))"><span id="subtitle5" style="color: #62D881;">Our Approach</span></div>
-          <div onclick="goTo(document.getElementById('six'))"><span id="subtitle6" style="color: #62D881;">References</span></div>
+          <div onclick="goTo(document.getElementById('four'))"><span id="subtitle4" style="color: #62D881;">Peptide binding model</span></div>
+          <div onclick="goTo(document.getElementById('five'))"><span id="subtitle5" style="color: #62D881;">UCYN-A isolation</span>
+          <div onclick="goTo(document.getElementById('six'))"><span id="subtitle6" style="color: #62D881;"><em>B. bigelowii</em> on list A1</div></span></div>
+          <div onclick="goTo(document.getElementById('seven'))"><span id="subtitle7" style="color: #62D881;">References</span></div>
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@@ -27,8 +28,8 @@
                 </p>
 
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-          <div class="h" id="two" style="margin-top: -100px">
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+          <div class="h" id="two">
             <div class="h1">Problem</div>
             <p>The Nitrogen Action Programme, introduced by the Dutch government in 2015, aimed to reduce nitrogen deposition, particularly in agriculture due to fertilizer use and ammonia emissions. However, in 2019, the Council of State deemed the programme <strong>insufficient</strong>, highlighting that nitrogen emissions were not just affecting rural ecosystems but also impacting urban development. As a result, new residential construction projects were halted until nitrogen emissions could be adequately compensated for, exacerbating the already critical housing shortage in the Netherlands <a href="#cite1" style="color: #185A4F;">[1]</a>. This demonstrates how agricultural nitrogen management has far-reaching effects beyond the environment, directly influencing urban issues like the housing crisis, thereby emphasizing the urgency of addressing both challenges in tandem.</p>
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