title: Bootstrap: stretching navbar input box
body: <p>I'm trying to modify an example bootstrap navbar (jsfiddle here: <a href="http://jsfiddle.net/h9x3qvpd/1/" rel="nofollow">http://jsfiddle.net/h9x3qvpd/1/</a>). Right now I've hardcoded the width to get some stretching, but this obviously ruins the responsiveness. </p>
  
  <p>Is there a way to get the input element to stretch all the way across the screen? My code is below:</p>
  
  <pre><code>&lt;nav class="navbar navbar-default"&gt;
    &lt;div class="container-fluid"&gt;
      &lt;!-- Brand and toggle get grouped for better mobile display --&gt;
      &lt;div class="navbar-header"&gt;
        &lt;button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1"&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;/div&gt;
  
      &lt;!-- Collect the nav links, forms, and other content for toggling --&gt;
      &lt;div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"&gt;
        &lt;form class="navbar-form navbar-left" role="search"&gt;
          &lt;div class="form-group"&gt;
            &lt;input type="text" class="form-control" placeholder="Search" style="width:620px"&gt;
          &lt;/div&gt;
          &lt;button type="submit" class="btn btn-default"&gt;Submit&lt;/button&gt;
        &lt;/form&gt;
        &lt;ul class="nav navbar-nav navbar-right"&gt;
          &lt;li class="dropdown"&gt;
            &lt;a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false"&gt;Dropdown &lt;span class="caret"&gt;&lt;/span&gt;&lt;/a&gt;
            &lt;ul class="dropdown-menu" role="menu"&gt;
              &lt;li&gt;&lt;a href="#"&gt;Action&lt;/a&gt;&lt;/li&gt;
              &lt;li&gt;&lt;a href="#"&gt;Another action&lt;/a&gt;&lt;/li&gt;
              &lt;li&gt;&lt;a href="#"&gt;Something else here&lt;/a&gt;&lt;/li&gt;
              &lt;li class="divider"&gt;&lt;/li&gt;
              &lt;li&gt;&lt;a href="#"&gt;Separated link&lt;/a&gt;&lt;/li&gt;
            &lt;/ul&gt;
          &lt;/li&gt;
        &lt;/ul&gt;
      &lt;/div&gt;&lt;!-- /.navbar-collapse --&gt;
    &lt;/div&gt;&lt;!-- /.container-fluid --&gt;
  &lt;/nav&gt;
  </code></pre>