CODEWITHSUNDEEP
htmlcssbootstrap-4
sfarzoso
sfarzoso

Reputation: 1610

Bootstrap menu close automatically when expanded

I wrote a media query that remove the hamburger menu automatically on a certain resolution but for some reason, when the menu is collapsed and I try to expand it, the menu is closing automatically, this is the code:

@media (min-width: 768px) {
  .navbar-toggler {
    display: none;
  }
}

@media (max-width: 1200px) {
  .navbar-header {
    float: none;
  }
  .navbar-left,
  .navbar-right {
    float: none !important;
  }
  .navbar-toggler {
    display: block;
  }
  .navbar-collapse {
    border-top: 1px solid transparent;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  }
  .navbar-fixed-top {
    top: 0;
    border-width: 0 0 1px;
  }
  .navbar-collapse.collapse {
    display: none !important;
  }
  .navbar-nav {
    float: none !important;
    margin-top: 7.5px;
  }
  .navbar-nav > li {
    float: none;
  }
  .navbar-nav > li > a {
    padding-top: 10px;
    padding-bottom: 10px;
  }
  .collapse.in {
    display: block !important;
  }
}
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"></script>


<nav class="navbar navbar-inverse navbar-dark bg-dark static-top">
  <div class="container">
    <a class="navbar-brand" href="#">
          <img src="http://placehold.it/150x50?text=Logo" alt="">
        </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" id="navbarResponsive">
      <ul class="navbar-nav ml-auto">
        <li class="nav-item active">
          <a class="nav-link" href="#">Home
                <span class="sr-only">(current)</span>
              </a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">About</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Services</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Contact</a>
        </li>
      </ul>
    </div>
  </div>
</nav>

as you can see this happen only when the menu is collapsed and I try to expand it, what I did wrong?

Upvotes: 1

Views: 290

Answers (1)

Luca Favorido
Luca Favorido

Reputation: 96

The problem is in the property:

@media (max-width: 1200px) {
  /* ... */
  .navbar-collapse.collapse {
    display: none !important;
  }
}

After the animation, Bootstrap adds a collapse class to your menu. You're overwriting the default behavior hiding the menu for every resolution less than 1200px.

I hope this answer could help you! 😉

@media (min-width: 768px) {
  .navbar-toggler {
    display: none;
  }
}

@media (max-width: 1200px) {
  .navbar-header {
    float: none;
  }
  .navbar-left,
  .navbar-right {
    float: none !important;
  }
  .navbar-toggler {
    display: block;
  }
  .navbar-collapse {
    border-top: 1px solid transparent;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  }
  .navbar-fixed-top {
    top: 0;
    border-width: 0 0 1px;
  }
  .navbar-nav {
    float: none !important;
    margin-top: 7.5px;
  }
  .navbar-nav > li {
    float: none;
  }
  .navbar-nav > li > a {
    padding-top: 10px;
    padding-bottom: 10px;
  }
  .collapse.in {
    display: block !important;
  }
}
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"></script>


<nav class="navbar navbar-inverse navbar-dark bg-dark static-top">
  <div class="container">
    <a class="navbar-brand" href="#">
          <img src="http://placehold.it/150x50?text=Logo" alt="">
        </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" id="navbarResponsive">
      <ul class="navbar-nav ml-auto">
        <li class="nav-item active">
          <a class="nav-link" href="#">Home
                <span class="sr-only">(current)</span>
              </a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">About</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Services</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Contact</a>
        </li>
      </ul>
    </div>
  </div>
</nav>

Upvotes: 1

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