<link href="//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<nav class="navbar navbar-default" role="navigation">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-megadropdown-tabs">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
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</button>
<a class="navbar-brand" href="#"></a>
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<div class="collapse navbar-collapse" id="bs-megadropdown-tabs">
<ul class="nav navbar-nav">
<li><a href="#">Link</a></li>
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<li class="dropdown mega-dropdown active">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <span class="caret"></span></a>
<div class="dropdown-menu mega-dropdown-menu">
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<div class="tab-pane active" id="men">
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<li><a href="#"><img src="http://content.nike.com/content/dam/one-nike/globalAssets/menu_header_images/OneNike_Global_Nav_Icons_Basketball.png"><span>Basketball</span></a></li>
<li><a href="#"><img src="http://content.nike.com/content/dam/one-nike/globalAssets/menu_header_images/OneNike_Global_Nav_Icons_Football.png"><span>Football</span></a></li>
<li><a href="#"><img src="http://content.nike.com/content/dam/one-nike/globalAssets/menu_header_images/OneNike_Global_Nav_Icons_Soccer.png"><span>Soccer</span></a></li>
<li><a href="#"><img src="http://content.nike.com/content/dam/one-nike/globalAssets/menu_header_images/OneNike_Global_Nav_Icons_MensTraining.png"><span>Men's Training</span></a></li>
<li><a href="#"><img src="http://content.nike.com/content/dam/one-nike/globalAssets/menu_header_images/OneNike_Global_Nav_Icons_WomensTraining.png"><span>Women's Training</span></a></li>