diff --git a/docs/layout.html b/docs/layout.html
index bf190e7a..9dac0d2d 100644
--- a/docs/layout.html
+++ b/docs/layout.html
@@ -30,7 +30,7 @@
 		<script src="lib/prism/prism.js"></script>
 		<script>
 		document.querySelector(".hamburger").onclick = function() {
-			document.body.className = 'navigating'
+			document.body.className = document.body.className === "navigating" ? "" : "navigating"
 			document.querySelector("h1 + ul").onclick = function() {
 				document.body.className = ''
 			}
diff --git a/docs/style.css b/docs/style.css
index 5d138a32..9053365b 100644
--- a/docs/style.css
+++ b/docs/style.css
@@ -44,7 +44,7 @@ h1 + ul strong + ul {border-left:3px solid #1e5799;}
 }
 
 @media (max-width: 767px) {
-	.hamburger {display:block;font-size:30px;padding:0 10px;position:fixed;right:0;top:0;}
+	.hamburger {display:block;font-size:30px;padding:0 10px;position:fixed;right:0;top:0;z-index:2;}
 	.hamburger:hover {text-decoration:none;}
 	main section {margin:0;}
 	header section {margin:0 0 20px;position:static;width:auto;}