diff --git a/doc/404.rst b/doc/404.rst
index 8d557afe2..cdf1b21c7 100644
--- a/doc/404.rst
+++ b/doc/404.rst
@@ -2,22 +2,25 @@
 
 .. _page-not-found:
 
-Sorry, Page Not Found
-#####################
+Page Not Found
+##############
 
-.. image:: images/ACRN-fall-from-tree-small.png
-   :align: left
-   :scale: 100%
+.. rst-class:: rst-columns
 
-|
-| Sorry, the page you requested was not found on this site.
-|
-|
-| Please check the address for misspellings.
-| It's also possible we've removed or renamed the page you're looking for.
-|
-| Please try using the navigation links on the left of this page to navigate
-| the major sections of our site, or use the document search box.
+   .. image:: images/ACRN-fall-from-tree-small.png
+      :align: left
+
+   Sorry. The page you requested was not found on this site.
+
+   Check the address for misspellings.
+   It's also possible we've removed or renamed the page you're looking for.
+
+   Try using the navigation links on the left of this page to navigate
+   the major sections of our site, or use the document search box.
+
+   If you got this error by following a link, please let us know by sending
+   us a message to `info@projectacrn.org
+   <mailto:info@projectacrn.org?subject=projectacrn.github.io%20broken%20link>`_.
 
 .. raw:: html