I am working on a nav bar. I have seen that, nav bar is collapsed in mobile size or col-xs size. But I want to make this nav collapsed also for medium & small devices. How can I accomplish this.
Can check from live site : https://dl.dropboxusercontent.com/u/86581418/consegna/blog.html
Code :
    <div class="col-md-7 col-sm-12 col-xs-12" style="padding-top: 40px;">
       <nav role="navigation" class="navbar navbar-default navbar_top" >
        <div class="navbar-header" style="margin-top: -70px;">
      <button type="button" data-target="#myNavbar" data-toggle="collapse" class="navbar-toggle" style="border-color:#fff;">
       <span class="sr-only">Toggle navigation</span>
       <span class="icon-bar" style="background-color:#fff;"></span>
       <span class="icon-bar" style="background-color:#fff;"></span>
       <span class="icon-bar" style="background-color:#fff;"></span>
      </button>
      </div>
    
      <div id="myNavbar" class="collapse navbar-collapse top_nav">
       <nav class="nav_top">
        <ul class="nav navbar-nav top_nav_block">
         <li ><a href="#">HOME</a></li>
         <li><a href="gallery.html">GALLERY</a></li>
         <li class="active"><a  href="blog.html">BLOG</a></li>
         <li><a href="about.html">ABOUT</a></li>
         <li><a href="contact.html">CONTACT</a></li>
        </ul>
       </nav>            
      </div>
     </nav>
    </div> 
     
     
    