diff --git a/layouts/partials/header.html b/layouts/partials/header.html
index f7e6e87..e2e57bf 100644
--- a/layouts/partials/header.html
+++ b/layouts/partials/header.html
@@ -54,4 +54,8 @@
           </ul>
         </div>
       </nav>
+      <div id="heads-up" class="alert alert-info" role="alert">
+        Looking for version 1.0 documentation? This site is currently out of sync, please read the
+        <a href="https://docs.rs/actix-web/1.0.2/actix_web/" class="alert-link">documentation at docs.rs</a>.
+      </div>
     </header>
diff --git a/static/css/actix.css b/static/css/actix.css
index 2b0a061..041ada6 100644
--- a/static/css/actix.css
+++ b/static/css/actix.css
@@ -599,7 +599,7 @@ h5:hover a {
 }
 
 @media (min-width: 480px) and (max-width: 576px) {
-  header .nav {
+  header .nav, #heads-up {
     width: 100%;
   }
   .hd-lg-down {
@@ -607,7 +607,7 @@ h5:hover a {
   }
 }
 @media (min-width: 576px) and (max-width: 768px) {
-  header .nav {
+  header .nav, #heads-up {
     width: 88%;
   }
   .hd-lg-down {
@@ -615,7 +615,7 @@ h5:hover a {
   }
 }
 @media (min-width: 768px) and (max-width: 992px) {
-  header .nav {
+  header .nav, #heads-up {
     width: 90%;
   }
   .hd-lg-down {
@@ -624,7 +624,7 @@ h5:hover a {
 }
 
 @media (min-width: 992px) {
-  header .nav {
+  header .nav, #heads-up {
     width: 75%;
   }
   .hd-lg-down {
@@ -667,3 +667,9 @@ h5:hover a {
       width: 77%;
   }
 }
+
+#heads-up {
+  margin-left: auto;
+  margin-right: auto;
+  margin-top: 1rem;
+}