diff --git a/content/style.css b/content/style.css
index 6d43845..8b1e4c7 100644
--- a/content/style.css
+++ b/content/style.css
@@ -158,3 +158,36 @@ span.comment {
 img {
   max-width:              100%;
 }
+
+
+body {margin: 0;}
+
+ul.topnav {
+  list-style-type: none;
+  margin: 0;
+  padding: 0;
+  overflow: hidden;
+  background-color: #333;
+}
+
+ul.topnav li {float: left;}
+
+ul.topnav li a {
+  display: block;
+  color: white;
+  text-align: center;
+  padding: 14px 16px;
+  text-decoration: none;
+}
+
+ul.topnav li a:hover:not(.active) {background-color: #111;}
+
+ul.topnav li a.active {background-color: #4CAF50;}
+
+ul.topnav li.right {float: right;}
+
+@media screen and (max-width: 600px) {
+  ul.topnav li.right, 
+  ul.topnav li {float: none;}
+}
+