Here is the top Navbar, it has a dropdown menu: http://getbootstrap.com/components/#navbar

On the wide screen, Navbar is maximized, and Dropdown is minimized, as it should be.

And on a narrow mobile Navbar it collapses and when you click on the menu button, it opens, but Dropdown is minimized, and I would like to see the expanded Navbar and Dropdown open itself when opened, and the arrow next to Dropdown can also be removed. Something no matter how I tried, it did not work out without JS on one CSS.

Jsfiddle

@import url('https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css'); @media only screen and (max-width:480px){ .dropdown-menu{ display: block; position: static; background-color:transparent; border:0 none; box-shadow:none; margin-top:0; position:static; width:100%; } .navbar-nav .dropdown-menu > li > a, .navbar-nav .dropdown-menu .dropdown-header { padding:5px 15px 5px 25px; } .navbar-nav .dropdown-menu > li > a{ line-height:20px; } .navbar-default .navbar-nav .dropdown-menu > li > a{ color:#777; } a.dropdown-toggle .caret { display: none; } } 
 <nav class="navbar navbar-default" role="navigation"> <div class="container-fluid"> <!-- Brand and toggle get grouped for better mobile display --> <div class="navbar-header"> <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="#">Brand</a> </div> <!-- Collect the nav links, forms, and other content for toggling --> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul class="nav navbar-nav"> <li class="active"><a href="#">Link</a></li> <li><a href="#">Link</a></li> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <span class="caret"></span></a> <ul class="dropdown-menu" role="menu"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li class="divider"></li> <li><a href="#">Separated link</a></li> <li class="divider"></li> <li><a href="#">One more separated link</a></li> </ul> </li> <li><a href="#">Link</a></li> </ul> </div><!-- /.navbar-collapse --> </div><!-- /.container-fluid --> </nav> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

1 answer 1

To expand the dropdown list, Bootstrap adds the .open class to the menu item with this list. Therefore, we are looking for everything that bootstrap.css says about .open and .dropdown-menu with a screen width of up to 767px . It turns out a lot of things - both about the form, and about color, and about visibility.

We delete from the found .open instructions to act immediately. Add .navbar-nav , where .navbar-nav , to open drop-down lists only within the menu. And we wrap everything in @media (max-width: 767px) .

In the same media query, we hide the black triangle at the switch.

Check out: https://jsfiddle.net/glebkema/eL7eLq4L/

 @import url('https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css'); @media (max-width: 767px) { .navbar-nav .dropdown-toggle .caret { display: none; } .navbar-nav .dropdown-menu { display: block; } .navbar-nav .dropdown > a { outline: 0; } .navbar-nav .dropdown-menu { position: static; float: none; width: auto; margin-top: 0; background-color: transparent; border: 0; -webkit-box-shadow: none; box-shadow: none; } .navbar-nav .dropdown-menu > li > a, .navbar-nav .dropdown-menu .dropdown-header { padding: 5px 15px 5px 25px; } .navbar-nav .dropdown-menu > li > a { line-height: 20px; } .navbar-nav .dropdown-menu > li > a:hover, .navbar-nav .dropdown-menu > li > a:focus { background-image: none; } .navbar-default .navbar-nav > > a, .navbar-default .navbar-nav > > a:hover, .navbar-default .navbar-nav > > a:focus { color: #555; background-color: #e7e7e7; } .navbar-default .navbar-nav .dropdown-menu > li > a { color: #777; } .navbar-default .navbar-nav .dropdown-menu > li > a:hover, .navbar-default .navbar-nav .dropdown-menu > li > a:focus { color: #333; background-color: transparent; } .navbar-default .navbar-nav .dropdown-menu > .active > a, .navbar-default .navbar-nav .dropdown-menu > .active > a:hover, .navbar-default .navbar-nav .dropdown-menu > .active > a:focus { color: #555; background-color: #e7e7e7; } .navbar-default .navbar-nav .dropdown-menu > .disabled > a, .navbar-default .navbar-nav .dropdown-menu > .disabled > a:hover, .navbar-default .navbar-nav .dropdown-menu > .disabled > a:focus { color: #ccc; background-color: transparent; } } 
 <nav class="navbar navbar-default" role="navigation"> <div class="container-fluid"> <!-- Brand and toggle get grouped for better mobile display --> <div class="navbar-header"> <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="#">Brand</a> </div> <!-- Collect the nav links, forms, and other content for toggling --> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul class="nav navbar-nav"> <li class="active"><a href="#">Link</a></li> <li><a href="#">Link</a></li> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <span class="caret"></span></a> <ul class="dropdown-menu" role="menu"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li class="divider"></li> <li><a href="#">Separated link</a></li> <li class="divider"></li> <li><a href="#">One more separated link</a></li> </ul> </li> <li><a href="#">Link</a></li> </ul> </div><!-- /.navbar-collapse --> </div><!-- /.container-fluid --> </nav> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

  • Everything works perfectly. Thank you so much for a detailed explanation of how to find the necessary css classes, and not just ready-made code. Before that, I thought that there is some class (for example, .open-xs) adding which menu will be opened at the required resolution, it means no, but there is a solution. Thank. Plus, so far I can not put it because of the missing rating. - Jatixo
  • I am glad to help. Thanks for the comment that helped. And the rating is a new thing :) - Gleb Kemarsky