How to have responsive hamburger menu and brand logo with boot strap v4 alpha

If you look into nav bar documentations of boot strap 4 you will notice the responsive  nav bar with hamburger menu like we used to have in boot strap 3 is missing.

 http://v4-alpha.getbootstrap.com/components/navbar/

The nav bars in version 4 are having different UX. In my opinion, there are so many sites based on boot strap 3 navbar and people get used to the way it is working. 

I personally would  prefer to stick with what people are used to than introducing new way of nav bar.

Here is the sample that you need to follow   

	<nav class="navbar navbar-light header-background p-x-0" id="nav2">
	<button class="navbar-toggler hidden-lg-up pull-xs-right" type="button" data-toggle="collapse" data-target="#exCollapsingNavbar2" aria-controls="exCollapsingNavbar2" aria-expanded="false" aria-label="Toggle navigation">
	&#9776;
	</button>
	<a class="navbar-brand hidden-md-down p-l-1" href="#">
	<img class="img-fluid" alt="" src="/images/Logo.png">
	</a>
	<a class="navbar-brand hidden-lg-up p-l-1" href="#">
	<img width="100" alt="" src="/images/Logo.png">
	</a>
	<div class="collapse navbar-toggleable-md pull-lg-right" id="exCollapsingNavbar2">
	<ul class="nav navbar-nav p-x-1">
	<li class="nav-item">
	<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
	</li>
	<li class="nav-item">
	<a class="nav-link" href="#">Menu 1</a>
	</li>
	<li class="nav-item">
	<a class="nav-link" href="#">Menu 2</a>
	</li>
	<li class="nav-item">
	<a class="nav-link" href="#">Menu 3</a>
	</li>
	</ul>
	</div>
	</nav>

view raw markup.html hosted with ❤ by GitHub

	@media(max-width:992px) {
	.navbar .navbar-brand {
	float: none;
	display: block;
	}
	.navbar .navbar-nav > .nav-item {
	float: none;
	margin-left: .1rem;
	}
	.navbar .navbar-nav {
	float: none !important;
	}
	}

view raw style.css hosted with ❤ by GitHub