Dropdown Hidden Inside Bootstrap Modal

Question

I am using Bootstrap modal with several dropdown into it due to bunch of stuff I set overflow: auto CSS property to have a scroll bar in modal.

Problem is when I open any of the dropdown it does not appear out of the modal (due to that CSS property overflow: auto ) it hides under the modal (see image).

I want to appear that dropdown out of that modal I tried everything z-index: 999999; position: absolute z-index: 999999; position: absolute etc but does not seems to work.

I googled and all solutions I found was to remove that overflow: auto property and to put overflow:visible but as I mentioned due to bunch of dropdowns (around 150) I must need to put scroll bar for overflow otherwise modal height mess the page.

CSS (mandatory)

.modal-body {
  max-height: 100px;
  overflow: auto;
} 

The simple solution is you just replace that overflow:auto to visible and it works, but I need solution with keeping overflow:auto ;

here is the working example on JSFiddle

Thanks in advance.

Answer 1

You can do this, however not without breaking bootstraps responsiveness .

reset the position: relative; back to its initial position: static;

.modal-body,
.modal-body .dropdown {
   position: static;
}

The problem with it is that the dropdown doesn't know at which position it should be. So you have to position it yourself

.modal-body .dropdown-menu {
  top: 100px;
  left: 20px;
}

I woudn't recommend this solution, but just stick to the way bootstrap handles elements.

 .modal-body { max-height: 100px; overflow: auto; } .modal-body, .modal-body .dropdown { position: static !important; } .modal-body .dropdown-menu { top: 100px; left: 20px; } 

 <link rel="stylesheet" type="text/css" href="https://netdna.bootstrapcdn.com/bootstrap/3.0.2/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <script src="https://netdna.bootstrapcdn.com/bootstrap/3.0.2/js/bootstrap.min.js"></script> <!-- Button trigger modal --> <button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal"> Launch demo modal </button> <!-- Modal --> <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button> <h4 class="modal-title" id="myModalLabel">Modal title</h4> </div> <div class="modal-body"> <div class="dropdown"> <a id="dLabel" role="button" data-toggle="dropdown" data-target="#" href="#"> Dropdown <span class="caret"></span> </a> <br> <ul class="dropdown-menu" role="menu" aria-labelledby="dLabel"> <li>one</li> <li>two</li> <li>three</li> <li>four</li> <li>five</li> <li>six</li> <li>seven</li> <li>eight</li> </ul> </div> </div> <div class="modal-footer"> <button type="button" class="btn btn-primary" data-dismiss="modal">Done</button> </div> </div> <!-- /.modal-content --> </div> <!-- /.modal-dialog --> </div> <!-- /.modal --> 

Answer 2

在将引导程序从3.x升级到4.x之后，此问题已得到解决，现在引导程序4可以解决所有这些边缘情况。