Update index.html

Author: gigapod

index.html

@@ -83,7 +83,7 @@
       </td>
       <td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>
     </tr>
-    <tr style="height:40%;">
+    <tr style="height:35%;">
       <td align="center" class="menu-entry">
         <a class="menu-link" href="https://www.sparkfun.com/categories" target="_blank">SHOP</a>
       </td>