Update README.md

README.md

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 # The mission of the Allen Institute is to understand the principles that govern life, and to advance health. 
 ## Science Programs at Allen Institute
-
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   <tr  style="border:none">
-    <td width="1000"  style="border:none"></td>
+    <td width="1000"  style="border:none">
+    </td>
     <td width="1000"></td>
     <td width="1000"></td>
   </tr>
@@ -104,17 +104,20 @@ table, tr, td {
 </tr>
 </table>
 
-
-## Explore our open data portals
-### Serving the scientific community is at the center of our mission to expand our understanding of human health and disease. ###
-
   
-<table>
+<table  cellspacing="0" cellpadding="0" style="padding:0;margin:0;">
   <tr >
-    <td width="10000"></td>
-    <td width="10000"></td>
-    <td width="10000"></td>
+    <td  width="20000" align="center">
+      <h3>Explore our open data portals </h3>
+        <h4 style="margin:0; padding:0;">Serving the scientific community is at the center of our mission to expand our understanding of human health and disease</h4>
+    </td>
+    <td  width="10000" align="center">
+      <h3>Collaborative work</h3>
+      <h4 style="margin:0; padding:0;">Access our shared open resources repositories</h4>
+    </td>
   </tr>
+</table>
+<table>
 <tr>
   <td align="center">
     <a href="https://portal.brain-map.org/?utm_source=alleninstitute.org&#038;utm_medium=OpenScienceTools" target="">
@@ -132,59 +135,40 @@ table, tr, td {
     <a href="https://www.allencell.org/?utm_source=alleninstitute.org&#038;utm_medium=OpenScienceTools" target="">Allen Cell Explorer</a>
  - Cell biology resources, hiPSC lines, plasmids, imaging software, 3D images and models, and more.
   </td>
+  <td align="center">
+    <a href="https://www.microns-explorer.orghttps://www.microns-explorer.org/" target="">
+<img height=400 width=400 src="https://alleninstitute.org/wp-content/uploads/2020/10/MICrONS-EM-e1714157281329.jpg"
+		alt="Microns image from the Neural Coding team at the Allen Institute for Brain Science. This image shows colorful renderings of neurons and their synaptic connections."
+	/></a>
+    <a href="https://www.microns-explorer.orghttps://www.microns-explorer.org/" target="">MICrONS Explorer</a>
+ - A virtual cortex observatory that includes electron microscopy reconstructions of mouse visual cortex.
+</td>
 </tr>
 <tr>
   <td align="center">
 <img height=400 width=400 src="https://alleninstitute.org/wp-content/uploads/2024/09/Immune-Atlas-Umap.jpg"
 		alt="UMAP of Immune Health Atlas"
 	/>
+    <a href="https://explore.allenimmunology.org/?utm_source=alleninstitute.org&#038;utm_medium=OpenScienceTools" target="">Human Immune System Explorer</a>
+- Immunology datasets from longitudinal human studies, data visualizations, and more. 
   </td>
 <td align="center" >
   <img height=200 width=400 object-fit="cover" src="https://alleninstitute.org/wp-content/uploads/2022/11/Neural-Dynamics-Blue-Brain-1920x1080-1-e1714065152177.jpg"
 		alt="Colorful scientific image showing neuronal projections across the mouse brain"
 	/>
-</td>
-</tr><tr>
-  <td>
-    <a href="https://explore.allenimmunology.org/?utm_source=alleninstitute.org&#038;utm_medium=OpenScienceTools" target="">Human Immune System Explorer</a>
-- Immunology datasets from longitudinal human studies, data visualizations, and more. 
-</td>
-  <td>
-<a href="https://www.allenneuraldynamics.org/?utm_source=alleninstitute.org&#038;utm_medium=OpenScienceTools" target="">Neural Dynamics</a>
+  <a href="https://www.allenneuraldynamics.org/?utm_source=alleninstitute.org&#038;utm_medium=OpenScienceTools" target="">Neural Dynamics</a>
  - Neuroscience hardware, software, plasmids, data portals, and protocols.
-</td>
-</tr>
-</table>       
-
-## Collaborative work
-### Access our shared open resources repositories ###
-
-<table>
-  <tr >
-    <td width="10000"></td>
-    <td width="10000"></td>
-    <td width="10000"></td>
-  </tr>
-<tr>
-  <td align="center">
-    <a href="https://www.microns-explorer.orghttps://www.microns-explorer.org/" target="">
-<img height=200 width=400 src="https://alleninstitute.org/wp-content/uploads/2020/10/MICrONS-EM-e1714157281329.jpg"
-		alt="Microns image from the Neural Coding team at the Allen Institute for Brain Science. This image shows colorful renderings of neurons and their synaptic connections."
-	/></a>
-    <a href="https://www.microns-explorer.orghttps://www.microns-explorer.org/" target="">MICrONS Explorer</a>
- - A virtual cortex observatory that includes electron microscopy reconstructions of mouse visual cortex.
 </td>
   <td align="center">
      <a  href="https://www.portal.brain-bican.org/%20" target="">
-<img height=200 width=400 src="https://alleninstitute.org/wp-content/uploads/2024/09/BICANHeroImage-ezgif.com-optijpeg-1.jpg"
+<img height=400 width=400 src="https://alleninstitute.org/wp-content/uploads/2024/09/BICANHeroImage-ezgif.com-optijpeg-1.jpg"
 		alt="A scientist handles frozen brain tissue"
 	/></a>
     <a href="https://www.portal.brain-bican.org/%20" target="">BICAN</a>
  - BICAN aims to create an open-access compendium of data and tools to enhance understanding of brain structure and function, accelerating research.
   </td>
 </tr>
-</table>
-
+</table>