<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
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<div class="container">
<div class="row">
<div class="gallery-grid">
<div><img src="http://dummyimage.com/340x320/000/fff" class="img-responsive"></div>
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