Question: When I resize my browser window and make it smaller, the navbar nicely creates a collapse menu with a button on the right top corner. When I view the same site on my android phone, the navbar menu is always collapsed and the top right corner button is not visible. How can this be solved? Thanks!

```
<!DOCTYPE html>
<html>
<head>
  <title>My Groundhops</title>
  <!--[if lt IE 9]>
    <script src="http://html5shim.googlecode.com/svn/trunk/html5.js" type="text/javascript"></script>
  <![endif]-->
  <%= stylesheet_link_tag    "application", :media => "all" %>
  <%= javascript_include_tag "application" %>
  <%= csrf_meta_tags %>
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
  <div class="navbar navbar-fixed-top">
    <div class="navbar-inner">
      <div class="container">

        <a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
        </a>
        <a class="brand" href="#">My Groundhops</a>

        <div class="nav-collapse">
            <ul class="nav">
              <li>Clubs</li>
              <li>Visits</li>
            </ul>
        </div>

      </div>
    </div>
  </div>

  <div class="container">
    <div class="row">
      <div class="span12">Content</div>
    </div>
  </div>
</body>
</html>

```

Answer: 
You're probably missing the meta tag required for mobile devices to properly scale.

So stick this in the `head` section of your page and try again:

```
<meta name="viewport" content="width=device-width, initial-scale=1.0">

```
it seems to be a twitter bootstrap issue on opera mobile, it works on the default android browser. So my code seems OK.

<https://github.com/twitter/bootstrap/issues/3621>