add colab center

header.html

@@ -36,10 +36,8 @@
     <p style="margin-bottom: 10px; font-size: 94%">
     AltDiffusion has been added to 🧨Diffusers, see the documentation page: <a href="https://huggingface.co/docs/diffusers/main/en/api/pipelines/alt_diffusion">🧨 Pipeline doc</a>         
     </p>
-    <p style="margin-bottom: 10px; font-size: 94%">
+    <p style="margin-bottom: 10px; font-size: 94%; text-align: left;">
     你可以在colab试用我们的模型(You can try our models in the colab)
-    </p>
-    <div align="center">
-      <a href="https://colab.research.google.com/drive/1tBJGvocO4TBKBI22oKHtqyPDgcjqDSgF#scrollTo=QkNJDy4sVRBu"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>
-    </div>    
+    <a href="https://colab.research.google.com/drive/1tBJGvocO4TBKBI22oKHtqyPDgcjqDSgF#scrollTo=QkNJDy4sVRBu"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>  
+    </p>    
   </div>