diff --git a/modules/nav.php b/modules/nav.php
index 50e2ff6..a5bd624 100644
--- a/modules/nav.php
+++ b/modules/nav.php
@@ -1,9 +1,15 @@
 <nav class="navbar navbar-inverse">
     <div class="container">
         <div class="navbar-header">
+            <button class="navbar-toggle collapsed" aria-expanded="false" aria-controls="navbar" data-target=".navbar-collapse" data-toggle="collapse" type="buttton">
+                <span class="sr-only">Toggle navigation bar</span>
+                <span class="icon-bar"></span>
+                <span class="icon-bar"></span>
+                <span class="icon-bar"></span>
+            </button>
             <a class="navbar-brand" href=".">DataBus</a>
         </div>
-        <div id="navbar" >
+        <div class="navbar-collapse collapse" >
             <ul class="nav navbar-nav">
                 <li class="<?php echo isActive("Routes.php");?>" ><a href="Routes.php">Routes</a></li>
                 <li class="<?php echo isActive("Stops.php");?>"><a href="Stops.php">Stops</a></li>