title: Navigation bar not working in small screen
body: <p>I have created a simple navigation bar using bootstrap but when i click on it ,it does not show the list items ,it works fine in bigger screen.
  I have tried many alternatives but it does not work.</p>
  
  <pre><code>&lt;html&gt;
      &lt;head&gt;
          &lt;meta charset = "utf8"&gt;
          &lt;meta http-equiv = "X-UA-Compatible" content = "IE = edge"&gt;
          &lt;meta name = "viewport" content = "width = device-width initial-scale = 1"&gt;
  
          &lt;link rel = "stylesheet" type = "text/css" href = "conFusion/css/bootstrap.min.css"&gt;
          &lt;link rel = "stylesheet" type = "text/css" href = "conFusion/css/bootstrap-theme.min.css"&gt;
      &lt;/head&gt;
      &lt;body&gt;
          &lt;nav class = "navbar navbar-inverse" role = "navigation"&gt;
  
              &lt;div class = "container"&gt;
                  &lt;div class = "navbar-header"&gt;
                      &lt;button type = "button" class = "navbar-toggle collapsed"
                              data-toggle = "collapse" data-target = "#navbar" area-controls = "navbar" 
                              aria-expanded="false"&gt;
                          &lt;span class = "sr-only"&gt;Toggle Navigation&lt;/span&gt;
                          &lt;span class = "icon-bar"&gt;&lt;/span&gt;
                          &lt;span class = "icon-bar"&gt;&lt;/span&gt;
                          &lt;span class = "icon-bar"&gt;&lt;/span&gt;
                      &lt;/button&gt;
  
                      &lt;a class = "navbar-brand"&gt;Indore Medical&lt;/a&gt;
                  &lt;/div&gt;
                  &lt;div id = "navbar" class = "navbar-collapse collapse"&gt;
                      &lt;ul class = "nav navbar-nav"&gt;
                          &lt;li class = "active"&gt;&lt;a href = "#"&gt;Main-Course&lt;/a&gt;&lt;/li&gt;
                          &lt;li&gt;&lt;a href = "#"&gt;Starters&lt;/a&gt;&lt;/li&gt;
                          &lt;li&gt;&lt;a href = "#"&gt;Desert&lt;/a&gt;&lt;/li&gt;
                          &lt;li&gt;&lt;a href = "#"&gt;About-us&lt;/a&gt;&lt;/li&gt;
                      &lt;/ul&gt;
                  &lt;/div&gt;
              &lt;/div&gt;
          &lt;/nav&gt;
      &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>