Remove blinking effet bootstrap dropdown - css

Question

While modifying Bootstrap vanilla's css, I found a weird blinking effect when you click on a dropdown then click outside of it (in the body for example) :
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<style>
.navbar-default {
background-color: #222;
}
.navbar-default .navbar-brand,
.navbar-default .navbar-brand:hover,
.navbar-default .navbar-nav > li > a {
color: #FFF;
}
.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus,
.navbar-default .navbar-nav > .dropdown > a:focus,
.navbar-default .navbar-nav > .open {
background-color: #444;
color: #FFF;
}
#media (min-width: 3000px) and (max-width: 3000px) {
.collapse {
display: none !important;
}
}
</style>
<script src="https://code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<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>Link <span class="sr-only">(current)</span>
</li>
<li>Link
</li>
<li class="dropdown">
Dropdown <span class="caret"></span>
<ul class="dropdown-menu">
<li>Action
</li>
<li>Another action
</li>
<li>Something else here
</li>
<li role="separator" class="divider"></li>
<li>Separated link
</li>
<li role="separator" class="divider"></li>
<li>One more separated link
</li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-left" role="search">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
<ul class="nav navbar-nav navbar-right">
<li>Link
</li>
<li class="dropdown">
Dropdown <span class="caret"></span>
<ul class="dropdown-menu">
<li>Action
</li>
<li>Another action
</li>
<li>Something else here
</li>
<li role="separator" class="divider"></li>
<li>Separated link
</li>
</ul>
</li>
</ul>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container-fluid -->
</nav>
To make the snippet actually displays the error, you need to see it within a full page.
I also made a JSFiddle to make things clearer, and less difficult to explain.
Do you have any idea about which css selector should I use to fix it ?

Answer 1

The element you need is the a.dropdown-toggle. I don't know how much specific is bootstrap when styling it, or even if it uses inline-style, but if you use !important you can see that the blinking stops.
.dropdown-toggle {
background-color: transparent !important;
}
Updated fiddle
Update:
Bootstrap uses: .nav .open>a, .nav .open>a:focus, .nav .open>a:hover

Answer 2

Check out with the below link and let me know if its working fine now.
https://jsfiddle.net/98o4kakg/3/
.navbar-default .navbar-nav > .open {
background-color: #444;
color:#FFF;
}

Answer 3

You need to style your dropdown link instead of the dropdown itself by adding this in your css :
.navbar-default .navbar-nav > .dropdown > a {
background-color:#222;
color:#FFF;
}
Including more tags and classes will hold a higher priority over a style on the same element without the extra classes.
For instance : just adding body before a class can make the class more specific.
I've updatded your JSFiddle as well.