I've been trying to apply this Bootstrap 4.0 - Two NavBars that collapse into one toggle answer to my issue but am not resolving it after some effort.
I'm trying to have the content of both navbars collapse into one toggle button.
The two issues are once collapsed to sm my toggle button doesn't display its content (from either target), and that at sm width my lower navbar does not maintain it's height. My code:
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm"
crossorigin="anonymous">
<title>Hello, world!</title>
</head>
<body>
<nav class="navbar navbar-expand-sm navbar-dark bg-dark sticky-top">
<button class="navbar-toggler" data-toggle="collapse" data-target="#collapse_target1, #collapse_target2">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="collapse_target1">
<ul class="navbar-nav mx-auto">
<li class="nav-item">
<a class="nav-link" href="#">Link 1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link 2</a>
</li>
<a class="navbar-brand">
<img src="https://image.freepik.com/free-vector/businessman-shouting-through-megaphone_23-2147511376.jpg" style="height: 2em">
<span>Home</span>
</a>
<li class="nav-item">
<a class="nav-link" href="#">Link 3</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link 4</a>
</li>
</ul>
</div>
</nav>
<nav class="navbar navbar-expand-sm navbar-light bg-light">
<div class="collapse navbar-collapse" id="collapse_target2">
<ul class="navbar-nav mx-auto">
<li class="nav-item">
<a class="nav-link" href="#">Link 5</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link 6</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link 7</a>
</li>
</ul>
</div>
</nav>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
crossorigin="anonymous"></script>
</body>
