Answers for "<button class="navbar-toggle" data-toggle="collapse" data-target="#search"> <span class="sr-only">Toggle Search</span> <i class="fa fa-search"></i> </button> </div><!--navbar-he NOT WORKING"

<button class="navbar-toggle" data-toggle="collapse" data-target="#search"> <span class="sr-only">Toggle Search</span> <i class="fa fa-search"></i> </button>

<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
</button>