Creating 2 navbar using Bootstrap 4 - html

Question

Is is possible to create 2 different navbar's using Bootstrap 4.3.x like the image below?
With the first navbar (with Sample Brand) fixed to top, and the second navbar scrollable?
Not sure if there is a utility from Bootstrap I can use to handle this.
Im tried adding a 'margin-top: 56px' on the second navbar which will give a space allowance, but this only works with large screens, as the first navbar's height will change when the burger menu icon shows.
My current code is:
<nav class="navbar navbar-expand-lg navbar-dark fixed-top" >
<div class="container">
<a class="navbar-brand" href="#">
Sample Brand
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse flex-column" id="navbarResponsive">
<ul class="navbar-nav ml-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Login
<span class="sr-only">(current)</span>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Register</a>
</li>
</ul>
</div>
</div>
</nav>
<nav class="navbar navbar-expand-lg navbar-dark p1-primary static-top" style="margin-top: 56px">
<div class="container">
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ">
<li class="nav-item active">
<a class="nav-link" href="#">Home
<span class="sr-only">(current)</span>
</a>
</li>
<li class="nav-item font-weight-lighter">
<a class="nav-link" href="#">FAQs</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Developer</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Contact Us</a>
</li>
</ul>
</div>
</div>
</nav>
This runs ok with large screens, but when I test it on small and medium screens, this happens:
Not really sure what margin-top value should I use as Bootstrap's navbar has no fixed height.
As much as possible, I do not want to do it with javascript as I think there a possible way in css (which I just dont know. Ikr haha!) and using javascript is an overkill. Hehe

Answer 1

You have your secondary navbar set to navbar-expand-lg so it changes to the collapsed navbar at the md breakpoint. If you want it to stay expanded, change the expand breakpoint. e.g. navbar-expand-md or navbar-expand-sm or for all viewport sizes navbar-expand
Below is an example with the secondary nav expanded in all viewports
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
<nav class="navbar navbar-expand-lg bg-dark navbar-dark fixed-top" >
<div class="container">
<a class="navbar-brand" href="#">
Sample Brand
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse flex-column" id="navbarResponsive">
<ul class="navbar-nav ml-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Login
<span class="sr-only">(current)</span>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Register</a>
</li>
</ul>
</div>
</div>
</nav>
<nav class="navbar navbar-expand navbar-dark bg-primary static-top" style="margin-top: 56px">
<div class="container">
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ">
<li class="nav-item active">
<a class="nav-link" href="#">Home
<span class="sr-only">(current)</span>
</a>
</li>
<li class="nav-item font-weight-lighter">
<a class="nav-link" href="#">FAQs</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Developer</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Contact Us</a>
</li>
</ul>
</div>
</div>
</nav>

Answer 2

This is very similar to Bootstrap 4 Multiple fixed-top navbars except the 2nd Navbar is static. The margin-top on the 2nd Navbar is fine.
However, "this runs ok with large screens, but when I test it on small and medium screens, this happens..."* is the problem, because the 2nd Navbar loses its height because it has no navbar-brand. The 2nd Navbar shouldn't be collapse at all and should be expanded...
<nav class="navbar navbar-expand-lg bg-dark navbar-dark fixed-top" >
<div class="container">
<a class="navbar-brand" href="#">
Sample Brand
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target=".navbar-collapse" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto">
...
</ul>
</div>
</div>
</nav>
<nav class="navbar navbar-expand bg-primary navbar-dark p1-primary static-top" style="margin-top: 56px">
<div class="container">
<ul class="navbar-nav ">
...
</ul>
</div>
</nav>
See: https://codeply.com/p/Nqhb6cszbt/option2