title: Bootstrap glyphicon error: square instead of icon
body: <p>Im trying to build responsive website. To do that, Im using Bootstrap 3. I have downloaded Bootstrap 3 and imported to my website root directory: </p>
  
  <p><img src="https://i.stack.imgur.com/oYupO.png" alt="folder"></p>
  
  <p>I don't know why, but on small screen it doesn't show my icon:</p>
  
  <p><img src="https://i.stack.imgur.com/zxpla.png" alt="icon"></p>
  
  <p>My code:</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  
  &lt;html lang="lt"&gt;
  
  &lt;head&gt;
  
      &lt;meta charset="UTF-8"&gt;
      &lt;meta name="viewport" content="width=device-width, initial-scale=1"&gt;
  
      &lt;link rel="stylesheet" href="../bootstrap-3.2.0-dist/css/bootstrap-theme.css"&gt;
      &lt;link rel="stylesheet" href="../bootstrap-3.2.0-dist/css/bootstrap.min.css"&gt;
      &lt;link rel="stylesheet" href="../css/reset.css"&gt;
      &lt;link rel="stylesheet" href="../css/styles.css"&gt;
  
      &lt;script src="../js/jquery-2.1.1.js"&gt;&lt;/script&gt;
      &lt;script src="../bootstrap-3.2.0-dist/js/bootstrap.min.js"&gt;&lt;/script&gt;
      &lt;script src="../js/script.js"&gt;&lt;/script&gt;
  
      &lt;title&gt;
          title
      &lt;/title&gt;
  
  &lt;/head&gt;
  
  &lt;body&gt;
  
      &lt;header class="top" role="header"&gt;
          &lt;div class="container"&gt;
              &lt;a href="../aplikacija/app.html" class="navbar-brand pull-left"&gt;
                  Application
              &lt;/a&gt;
              &lt;button class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse"&gt;
                  &lt;span class="glyphicon-align-justify"&gt;&lt;/span&gt;
              &lt;/button&gt;
              &lt;nav class="navbar-collapse collapse" role="navigation"&gt;
                  &lt;ul class="navbar-nav nav"&gt;
                      &lt;li&gt;&lt;a href="../aplikacija/app.html"&gt;APP&lt;/a&gt;&lt;/li&gt;
                      &lt;li&gt;&lt;a href="../ux/ux.html"&gt;UX&lt;/a&gt;&lt;/li&gt;
                  &lt;/ul&gt;
              &lt;/nav&gt;
          &lt;/div&gt;
      &lt;/header&gt;
  
      &lt;div id="app" class="content"&gt;
  
      &lt;/div&gt;
  
  &lt;/body&gt;
  
  &lt;/html&gt;
  </code></pre>