le="collapse" data-target="#fixed-collapse-navbar" aria-expanded="false"> 
            <span class="icon-bar top-bar"></span> <span class="icon-bar middle-bar"></span> <span class="icon-bar bottom-bar"></span> 
            </button>
           <a class="navbar-brand" href="index.html"><img src="images/logo.png" alt="logo" class="img-responsive"></a> 
         </div>
        
            <div id="fixed-collapse-navbar" class="navbar-collapse collapse navbar-right">
              <ul class="nav navbar-