JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap-theme.min.css">
<div id="wrapper">
    
    		<div class="container-fluid">
    
    			<div class="row">
    
    				<div class="col-md-3 img-container">
    					<div class="img-div">
    						<a
    							href="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQiWGXo4U6CCvNItlDYFgEQz4d3T-YjLj13nqUZ-crpAr3qMPx-"
    							title="" data-gallery rel="nofollow"> <img
    							src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQiWGXo4U6CCvNItlDYFgEQz4d3T-YjLj13nqUZ-crpAr3qMPx-"
    							width="20%" class="img-thumbnail img-responsive img-adv" />
    						</a>
    					</div>
    				</div>
    
    				<div class="col-md-3 img-container">
    					<div class="img-div">
    						<a
    							href="https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcSqUIWjfSNC02M5Yjo-7nLBoeSJSEcOZCy0uRdF7Z8HgZRxGWB_Lg"
    							title="" data-gallery rel="nofollow"> <img
    							src="https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcSqUIWjfSNC02M5Yjo-7nLBoeSJSEcOZCy0uRdF7Z8HgZRxGWB_Lg"
    							width="40%" class="img-thumbnail img-responsive img-adv" />
    						</a>
    					</div>
    				</div>
    
    				<div class="col-md-3 img-container">
    					<div class="img-div">
    						<a
    							href="https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcTP96P2l57b9znJ60v1gYS695LfH9K0bt8lB38Yi0McCdtq_dtC"
    							title="" data-gallery rel="nofollow"> <img
    							src="https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcTP96P2l57b9znJ60v1gYS695LfH9K0bt8lB38Yi0McCdtq_dtC"
    							width="80%" class="img-thumbnail img-responsive img-adv" />
    						</a>
    					</div>
    				</div>
    
    				<div class="col-md-3 img-container">
    					<div class="img-div">
    						<a
   ...

CSS

.col-md-3.img-container {
    background-color: green;
    height: 400px;
    display: flex;
    -webkit-flex-flow: column;
    -ms-flex-flow: column;
    flex-flow: column;
    margin-right: 2%;
}

.img-div {
    -webkit-box-flex: 2;
    -webkit-flex: 2;
    -ms-flex: 2;
    flex: 2;
    position: relative;
    text-align:center
  

}