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collapsed navbar for bootstrap 4

can I make a collapsed navbar in my code, because if I open in mobile the navbar cannot be collapsed to make one? I've tried to make a button and make it false but the navbar does not show on desktop or on mobile. this the code that I make to show a navbar.

<nav class="navbar-default navbar-side navbar-collapse" role="navigation">
        <div class="sidebar-collapse">

          <ul class="nav" id="main-menu">
            <li>
              <a class="active-menu ukuran"  href="?hal=dashboard"><i class="fas fa-tachometer-alt "></i> Dashboard</a>
            </li>
            <li class="nav-item dropdown">
              <a class="nav-item dropdown-toggle ukuran"  id="navbardrop" data-toggle="dropdown"><i class="fas fa-chart-line"></i> Quality</a>
              <div class="dropdown-menu">
                <a href="?hal=quality1" class="dropdown-item ukuran2">Quality 1</a>
                <a href="?hal=pemborong" class="dropdown-item ukuran2">Pemborong</a>
                <a href="?hal=quality2" class="dropdown-item ukuran2">Quality 2</a>             
              </div>
            </li>

              <li>
              <a class="active-menu ukuran"  href="logout.php"><i class="fas fa-sign-out-alt"></i> Keluar</a>
            </li>
          </ul>   
        </div>    
      </nav>

the CSS code like this

.navbar-side {
    border: none;
    background-color: #d5f0f3;
    height: 100%;
}
.sidebar-collapse .nav > li > a {
    color:#000;
    background-color: #d5f0f3;;
    text-shadow:none;

}


.navbar-cls-top .navbar-brand{
    color: #00c900;
    background: #d5f0f3;
    text-align: center;
    height: 50px;
    font-size: 40px;
}
.dropdown a {
    padding-left: 8px;
}

@media(min-width:768px) {
    .navbar-side {
        z-index: 1;
        position: absolute;
        width: 260px;
    }

    .navbar {
        border-radius: 0px; 
    }
}

A few things:

  • No expand class on the <nav>
  • No id="collapsibleNavbar" on the collapse div
  • relevant class missing on div with id="main-menu"

Working snippet below:

 <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script> <nav class="navbar navbar-expand-md bg-dark navbar-dark"> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsibleNavbar"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="collapsibleNavbar"> <ul class="navbar-nav" id="main-menu"> <li> <a class="active-menu ukuran" href="?hal=dashboard"><i class="fas fa-tachometer-alt "></i> Dashboard</a> </li> <li class="nav-item dropdown"> <a class="nav-item dropdown-toggle ukuran" id="navbardrop" data-toggle="dropdown"><i class="fas fa-chart-line"></i> Quality</a> <div class="dropdown-menu"> <a href="?hal=quality1" class="dropdown-item ukuran2">Quality 1</a> <a href="?hal=pemborong" class="dropdown-item ukuran2">Pemborong</a> <a href="?hal=quality2" class="dropdown-item ukuran2">Quality 2</a> </div> </li> <li> <a class="active-menu ukuran" href="logout.php"><i class="fas fa-sign-out-alt"></i> Keluar</a> </li> </ul> </div> </nav>

bootstrap 4 navbar:

 <html> <head> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.11.2/css/all.min.css"> </head> <body> <nav class="navbar navbar-expand-md navbar-dark bg-dark"> <button class="navbar-toggler collapsed" type="button" data-toggle="collapse" data-target=".dual-collapse" aria-expanded="false"> <span class="navbar-toggler-icon"></span> </button> <div class="navbar-collapse dual-collapse collapse"> <ul class="navbar-nav"> <li class="nav-item"> <a class="nav-link active-menu ukuran" href="?hal=dashboard"><i class="fas fa-tachometer-alt "></i> Dashboard</a> </li> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle ukuran" id="navbardrop" data-toggle="dropdown"><i class="fas fa-chart-line"></i> Quality</a> <div class="dropdown-menu"> <a href="?hal=quality1" class="dropdown-item ukuran2">Quality 1</a> <a href="?hal=pemborong" class="dropdown-item ukuran2">Pemborong</a> <a href="?hal=quality2" class="dropdown-item ukuran2">Quality 2</a> </div> </li> <li class="nav-item"> <a class="nav-link active-menu ukuran" href="logout.php"><i class="fas fa-sign-out-alt"></i> Keluar</a> </li> </ul> </div> </nav> </body> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script> </html>

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