Bootstrap website working well in PC but not in mobile : <p>My webpage is working fine in PC browser, and when I resize the browser, it will turn in to bootstrap icon, but in mobile, it does not working properly. Need help. What is wrong here. I need the mobile view by bootstrap.</p>

<pre><code>&lt;link rel="stylesheet" href="user/assets/css/style.css&lt;?php echo "?v= " . date("h:i:sa"); ?&gt;"&gt;
&lt;link rel="stylesheet" href="user/assets/css/bootstrap.min.css" type="text/css"  /&gt;
&lt;link rel="stylesheet" href="user/assets/css/bootstrap-responsive.css" type="text/css"  /&gt;
  &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"&gt;&lt;/script&gt;
  &lt;script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"&gt;&lt;/script&gt;
  &lt;link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"&gt;
&lt;?php 
 session_start(); 
 ?&gt;


 &lt;nav class="navbar navbar-inverse"&gt;
  &lt;div class="container-fluid"&gt;
    &lt;div class="navbar-header"&gt;
      &lt;button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar"&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" href="#"&gt;RedCellBD&lt;/a&gt;
    &lt;/div&gt;
    &lt;div class="collapse navbar-collapse" id="myNavbar"&gt;
      &lt;ul class="nav navbar-nav"&gt;


&lt;?php


if(!isset($_SESSION['user']))
{
    echo '&lt;li&gt;&lt;a href="index.php" class="hbut"&gt;&lt;span class="glyphicon glyphicon-home"&gt;&lt;/span&gt; Home&lt;/a&gt;&lt;/li&gt;';
    echo '&lt;li&gt;&lt;a href="donar.php" class="hbut"&gt;&lt;span class="glyphicon glyphicon-search"&gt;&lt;/span&gt; Donar&lt;/a&gt;&lt;/li&gt;';
    echo '&lt;li&gt;&lt;a href="login.php" class="hbut"&gt;&lt;span class="glyphicon glyphicon-log-in"&gt;&lt;/span&gt; Login&lt;/a&gt;&lt;/li&gt;';
    echo '&lt;li&gt;&lt;a href="signup.php" class="hbut"&gt;&lt;span class="glyphicon glyphicon-user"&gt;&lt;/span&gt; Be a Member&lt;/a&gt;&lt;/li&gt;';
    echo '&lt;li&gt;&lt;a href="offer.php" class="hbut"&gt;&lt;span class="glyphicon glyphicon-bullhorn"&gt;&lt;/span&gt; Campaign&lt;/a&gt;&lt;/li&gt;';
    echo '&lt;li&gt;&lt;a href="faq.php" class="hbut"&gt;&lt;span class="glyphicon glyphicon-question-sign"&gt;&lt;/span&gt; FAQ&lt;/a&gt;&lt;/li&gt;';
}
else
{
    echo '&lt;li&gt;&lt;a href="index.php" class="hbut"&gt;&lt;span class="glyphicon glyphicon-home"&gt;&lt;/span&gt; Home&lt;/a&gt;&lt;/li&gt;';
    echo '&lt;li&gt;&lt;a href="donar.php" class="hbut"&gt;&lt;span class="glyphicon glyphicon-search"&gt;&lt;/span&gt; Donar&lt;/a&gt;&lt;/li&gt;';
    echo '&lt;li&gt;&lt;a href="home.php" class="hbut"&gt;&lt;span class="glyphicon glyphicon-user"&gt;&lt;/span&gt; Profile&lt;/a&gt;&lt;/li&gt;';
    echo '&lt;li&gt;&lt;a href="logout.php?logout" class="hbut"&gt;&lt;span class="glyphicon glyphicon-log-out"&gt;&lt;/span&gt;Logout&lt;/a&gt;&lt;/li&gt;';
    echo '&lt;li&gt;&lt;a href="offer.php" class="hbut"&gt;&lt;span class="glyphicon glyphicon-bullhorn"&gt;&lt;/span&gt; Campaign&lt;/a&gt;&lt;/li&gt;';
    echo '&lt;li&gt;&lt;a href="faq.php" class="hbut"&gt;&lt;span class="glyphicon glyphicon-question-sign"&gt;&lt;/span&gt; FAQ&lt;/a&gt;&lt;/li&gt;';
  }
    ?&gt;

 &lt;/ul&gt;
 &lt;/div&gt;
  &lt;/div&gt;
&lt;/nav&gt;
</code></pre>
