diff --git a/website/themes/hsh/layouts/404.html b/website/themes/hsh/layouts/404.html
index e69de29..06b3561 100644
--- a/website/themes/hsh/layouts/404.html
+++ b/website/themes/hsh/layouts/404.html
@@ -0,0 +1,7 @@
+{{ define "main"}}
+	<main id="main">
+		<div>
+			<h1><a href="{{ "/" | relURL }}">Go Home</a></h1>
+		</div>
+	</main>
+{{ end }}
diff --git a/website/themes/hsh/layouts/shortcodes/warning.html b/website/themes/hsh/layouts/shortcodes/warning.html
new file mode 100644
index 0000000..f6be0ca
--- /dev/null
+++ b/website/themes/hsh/layouts/shortcodes/warning.html
@@ -0,0 +1,6 @@
+<div class="alert alert-warning d-flex align-items-center" role="alert">
+	<svg class="bi flex-shrink-0 me-2" width="24" height="24" role="img" aria-label="Warning:"><use xlink:href="#exclamation-triangle-fill"/></svg>
+	<div>
+		{{ index .Params 0 }}
+	</div>
+</div>