Bootstrap navbar collapses and disappears immediately

Question

when i click on the navbar icon on my mobile/tablet the navabr opens but then it goes away, but the navbar still thinks that the navbar is open, when i reclick on the navbar icon it closes then (can't see it close), but when i click again to open it, it's still the same.

I added a gif(sorry for the low resolution) to show you what i get. GIF

The Navbar code:

<div class="navbar-fixed-top">
        <div id="menu">
        <div class="menu--topbar">
            <div class="container">
                <div class="menu-topbar--contact">
                    <ul class="nav navbar-nav">                        
                        <li><a style="color:#fff" href="MAILTO:XXXXXXXXXXXXXXXXXXXXX"><i class="fa fa-envelope"></i><span href="mailto:XXXXXXXXXXXXXXXXXXXXX"></span>EMAILXXXXX</a></li>
                        <li><a style="color:#fff" href="tel:XXXXXXXXXX"><i class="fa fa-phone"></i><span href="tel:XXXXXXXXX"></span> XXXXXXXXX</a></li>
                    </ul>
                </div>                 
            </div>
        </div>

            <nav id="secondaryMenu" class="navbar-fixed-top">
            <div class="container">
                <div class="navbar-header">
                    <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#secondaryNavbar" aria-expanded="false" aria-controls="secondaryNavbar"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button>
                    <div class="login-btn hidden-lg hidden-md hidden-sm"> <a href="#" class="btn">Nefsani</a> </div>
                </div>
                <div id="secondaryNavbar" class="reset-padding navbar-collapse collapse ">
                    <ul class="secondary-menu-links nav navbar-nav">
                        <li><a href="Default.aspx">Home</a></li>
                        <li><a href="OverMezelf-Opleiding.aspx">Over mezelf</a></li>                    
                        <li class="dropdown"> <a href="relatietherapie.aspx" data-toggle="dropdown">Mijn aanbod<span class="caret"></span></a>
                            <ul class="dropdown-menu">
                                <li><a href="relatietherapie.aspx">relatietherapie</a></li>
                                <li><a href="individueletherapie.aspx">individuele therapie </a></li>
                                <li><a href="persoonlijkeconsultgesprekken.aspx">persoonlijke consultgesprekken</a></li>
                            </ul>
                        </li>
                        <li><a href="TariefEnTerugbetaling.aspx">Tarieven en terugbetaling</a></li>
                        <li><a href="contact.aspx">Contacteer mij</a></li>                     
                    </ul>
                    <ul class="secondary-menu-links nav navbar-nav navbar-right hidden-xs">
                        <li><a href="Default.aspx" class="btn">Nefsani</a></li>
                    </ul>
                </div>
            </div>
        </nav>

The Navbar CSS:

#secondaryMenu {
    position: relative;
    margin-bottom: 0;
    background-color: #54bceb;
    border: none;
    border-radius: 0;
    box-shadow: none;
    z-index: 1;
}

    #secondaryMenu.sticky {
        position: fixed;
        box-shadow: 0 0 4px rgba(0,0,0,.14),0 4px 8px rgba(0,0,0,.28);
    }

    #secondaryMenu .navbar-toggle {
        border: none;
    }

        #secondaryMenu .navbar-toggle .icon-bar {
            background-color: #fff;
        }

    #secondaryMenu a.navbar-brand {
        display: block;
        padding: 10px 0;
        margin-top: 18px;
        margin-left: 0;
        color: #303030;
        font-size: 24px;
        font-weight: 700;
    }

        #secondaryMenu a.navbar-brand span {
            color: #4584b4;
        }

    #secondaryMenu .navbar-header .login-btn > .btn {
        color: #fff;
        background-color: #303030;
        border: none;
        border-radius: 0;
        -webkit-transition: color .25s ease,background-color .25s ease-in-out;
        transition: color .25s ease,background-color .25s ease-in-out;
    }

        #secondaryMenu .navbar-header .login-btn > .btn:focus, #secondaryMenu .navbar-header .login-btn > .btn:hover {
            color: #303030;
            background-color: #fff;
            box-shadow: none;
            outline: 0;
        }

.secondary-menu-links li a {
    margin-right: 3px;
    padding: 24px 14px 21px;
    border-bottom: 3px solid transparent;
    color: #fff;
    font-size: 18px;
    line-height: 22px;
    font-weight: 700;
    -webkit-transition: color .25s ease,background-color .25s ease-in-out,border-color .25s ease;
    transition: color .25s ease,background-color .25s ease-in-out,border-color .25s ease;
}

.secondary-menu-links li:last-child a {
    margin-right: 0;
}

.secondary-menu-links > .dropdown > a > .caret {
    margin-left: 8px;
}

.secondary-menu-links li a .fa {
    display: block;
    margin: 0 auto 3px;
    font-size: 20px;
}

.secondary-menu-links .open > a, .secondary-menu-links .open > a:focus, .secondary-menu-links .open > a:hover, .secondary-menu-links li a:focus, .secondary-menu-links li a:hover, .secondary-menu-links li.active > a, .secondary-menu-links li.active > a:hover {
    background-color: transparent;
    border-color: #fff;
}

.secondary-menu-links > .dropdown:hover > .dropdown-menu {
    display: block;
}

.secondary-menu-links li .dropdown-menu {
    padding: 0;
    background-color: #fff;
    border-style: solid;
    border-width: 3px 0;
    border-color: #fff;
    border-radius: 0;
}

    .secondary-menu-links li .dropdown-menu li a {
        margin-right: 0;
        padding: 10px 15px;
        color: #303030;
        font-size: 16px;
        line-height: 20px;
        border: none;
    }

.secondary-menu-links > .dropdown > .dropdown-menu > li.active > a, .secondary-menu-links > .dropdown > .dropdown-menu > li.active > a:focus, .secondary-menu-links > .dropdown > .dropdown-menu > li.active > a:hover, .secondary-menu-links > .dropdown > .dropdown-menu > li > a:focus, .secondary-menu-links > .dropdown > .dropdown-menu > li > a:hover {
    color: #fff;
    background-color: #00678d;
}

.secondary-menu-links.navbar-right {
    padding-right: 15px;
}

.secondary-menu-links > li > a.btn {
    padding: 24px 30px;
    color: #fff;
    background-color: #303030;
    border: none;
    border-radius: 0;
    -webkit-transition: color .25s ease,background-color .25s ease-in-out;
    transition: color .25s ease,background-color .25s ease-in-out;
}

    .secondary-menu-links > li > a.btn:focus, .secondary-menu-links > li > a.btn:hover {
        color: #303030;
        background-color: #fff;
        box-shadow: none;
    }

If you need any more informaton let me know. thanks in advance!

Answer 1

try with all these includes, working fine now.

 <!DOCTYPE html> <html lang="en"> <head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> <style> #secondaryMenu { position: relative; margin-bottom: 0; background-color: #54bceb; border: none; border-radius: 0; box-shadow: none; z-index: 1; } #secondaryMenu.sticky { position: fixed; box-shadow: 0 0 4px rgba(0,0,0,.14),0 4px 8px rgba(0,0,0,.28); } #secondaryMenu .navbar-toggle { border: none; } #secondaryMenu .navbar-toggle .icon-bar { background-color: #fff; } #secondaryMenu a.navbar-brand { display: block; padding: 10px 0; margin-top: 18px; margin-left: 0; color: #303030; font-size: 24px; font-weight: 700; } #secondaryMenu a.navbar-brand span { color: #4584b4; } #secondaryMenu .navbar-header .login-btn > .btn { color: #fff; background-color: #303030; border: none; border-radius: 0; -webkit-transition: color .25s ease,background-color .25s ease-in-out; transition: color .25s ease,background-color .25s ease-in-out; } #secondaryMenu .navbar-header .login-btn > .btn:focus, #secondaryMenu .navbar-header .login-btn > .btn:hover { color: #303030; background-color: #fff; box-shadow: none; outline: 0; } .secondary-menu-links li a { margin-right: 3px; padding: 24px 14px 21px; border-bottom: 3px solid transparent; color: #fff; font-size: 18px; line-height: 22px; font-weight: 700; -webkit-transition: color .25s ease,background-color .25s ease-in-out,border-color .25s ease; transition: color .25s ease,background-color .25s ease-in-out,border-color .25s ease; } .secondary-menu-links li:last-child a { margin-right: 0; } .secondary-menu-links > .dropdown > a > .caret { margin-left: 8px; } .secondary-menu-links li a .fa { display: block; margin: 0 auto 3px; font-size: 20px; } .secondary-menu-links .open > a, .secondary-menu-links .open > a:focus, .secondary-menu-links .open > a:hover, .secondary-menu-links li a:focus, .secondary-menu-links li a:hover, .secondary-menu-links li.active > a, .secondary-menu-links li.active > a:hover { background-color: transparent; border-color: #fff; } .secondary-menu-links > .dropdown:hover > .dropdown-menu { display: block; } .secondary-menu-links li .dropdown-menu { padding: 0; background-color: #fff; border-style: solid; border-width: 3px 0; border-color: #fff; border-radius: 0; } .secondary-menu-links li .dropdown-menu li a { margin-right: 0; padding: 10px 15px; color: #303030; font-size: 16px; line-height: 20px; border: none; } .secondary-menu-links > .dropdown > .dropdown-menu > li.active > a, .secondary-menu-links > .dropdown > .dropdown-menu > li.active > a:focus, .secondary-menu-links > .dropdown > .dropdown-menu > li.active > a:hover, .secondary-menu-links > .dropdown > .dropdown-menu > li > a:focus, .secondary-menu-links > .dropdown > .dropdown-menu > li > a:hover { color: #fff; background-color: #00678d; } .secondary-menu-links.navbar-right { padding-right: 15px; } .secondary-menu-links > li > a.btn { padding: 24px 30px; color: #fff; background-color: #303030; border: none; border-radius: 0; -webkit-transition: color .25s ease,background-color .25s ease-in-out; transition: color .25s ease,background-color .25s ease-in-out; } .secondary-menu-links > li > a.btn:focus, .secondary-menu-links > li > a.btn:hover { color: #303030; background-color: #fff; box-shadow: none; } </style> </head> <body> <div class="navbar-fixed-top"> <div id="menu"> <div class="menu--topbar"> <div class="container"> <div class="menu-topbar--contact"> <ul class="nav navbar-nav"> <li><a style="color:#fff" href="MAILTO:XXXXXXXXXXXXXXXXXXXXX"><i class="fa fa-envelope"></i><span href="mailto:XXXXXXXXXXXXXXXXXXXXX"></span>EMAILXXXXX</a></li> <li><a style="color:#fff" href="tel:XXXXXXXXXX"><i class="fa fa-phone"></i><span href="tel:XXXXXXXXX"></span> XXXXXXXXX</a></li> </ul> </div> </div> </div> <nav id="secondaryMenu" class="navbar-fixed-top"> <div class="container"> <div class="navbar-header"> <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#secondaryNavbar" aria-expanded="false" aria-controls="secondaryNavbar"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <div class="login-btn hidden-lg hidden-md hidden-sm"> <a href="#" class="btn">Nefsani</a> </div> </div> <div id="secondaryNavbar" class="reset-padding navbar-collapse collapse "> <ul class="secondary-menu-links nav navbar-nav"> <li><a href="Default.aspx">Home</a></li> <li><a href="OverMezelf-Opleiding.aspx">Over mezelf</a></li> <li class="dropdown"> <a href="relatietherapie.aspx" data-toggle="dropdown">Mijn aanbod<span class="caret"></span></a> <ul class="dropdown-menu"> <li><a href="relatietherapie.aspx">relatietherapie</a></li> <li><a href="individueletherapie.aspx">individuele therapie </a></li> <li><a href="persoonlijkeconsultgesprekken.aspx">persoonlijke consultgesprekken</a></li> </ul> </li> <li><a href="TariefEnTerugbetaling.aspx">Tarieven en terugbetaling</a></li> <li><a href="contact.aspx">Contacteer mij</a></li> </ul> <ul class="secondary-menu-links nav navbar-nav navbar-right hidden-xs"> <li><a href="Default.aspx" class="btn">Nefsani</a></li> </ul> </div> </div> </nav> <div class="container"> <h3>Collapsible Navbar</h3> <p>In this example, the navigation bar is hidden on small screens and replaced by a button in the top right corner (try to re-size this window). <p>Only when the button is clicked, the navigation bar will be displayed.</p> </div> </body> </html>

Answer 2

You may be using outdated version of bootstrap link to import its javascript file. After updating the link, the problem was solved for me.

Hope it helps someone!