diff --git a/docs/pages/404.html b/docs/pages/404.html
index a0a278f..ff60026 100644
--- a/docs/pages/404.html
+++ b/docs/pages/404.html
@@ -1,26 +1,23 @@
 ---
 permalink: /404.html
 layout: default
+title: Page not found
 ---
 
-<style type="text/css" media="screen">
-  .container {
-    margin: 10px auto;
-    max-width: 600px;
-    text-align: center;
-  }
+<div class="nhsuk-width-container">
+  <main class="nhsuk-main-wrapper" id="maincontent" role="main">
+    <div class="nhsuk-grid-row">
+      <div class="nhsuk-grid-column-three-quarters">
 
-  h1 {
-    margin: 30px 0;
-    font-size: 4em;
-    line-height: 1;
-    letter-spacing: -1px;
-  }
-</style>
+        <h1>Page not found</h1>
 
-<div class="container">
-  <h1>404</h1>
+        <p>If you typed or pasted the web address, check it's correct.</p>
 
-  <p><strong>Page not found :(</strong></p>
-  <p>The requested page could not be found.</p>
+        <p>If the web address is correct, or you used a bookmark or link, the page may have been moved or deleted.</p>
+
+        <p><a href="/">Go to the NHS Notify homepage</a></p>
+
+      </div>
+    </div>
+  </main>
 </div>