--- a
+++ b/docs/_layouts/error.html
@@ -0,0 +1,23 @@
+{% include top.html %}
+
+<body class="wrap">
+  <header>
+    <div class="grid">
+      <div class="unit whole align-center">
+        <h1>
+          <a href="/">
+            <span class="sr-only">Jekyll</span>
+            <img src="/img/logo-2x.png" width="249" height="115" alt="Jekyll Logo">
+          </a>
+        </h1>
+      </div>
+    </div>
+  </header>
+
+  {{ content }}
+
+  {% include anchor_links.html %}
+  {% include analytics.html %}
+
+</body>
+</html>