I am currently working on constructing an image grid using Bootstrap, but I am facing some challenges in understanding how to write the code. You can find the final example here: https://i.sstatic.net/aDcIs.jpg
Below is my current code:
.border { border: 1px solid red; }
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.2/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<div class="container">
<div class="row">
<div class="col-md-4 border">
<img src="images/https://images-na.ssl-images-amazon.com/images/I/81EeCpMxY7L._SX355_.jpg" width="360" height="243" title="someText" alt="someText">
</div>
<div class="col-md-4 border">
<img src="images/https://images-na.ssl-images-amazon.com/images/I/81EeCpMxY7L._SX355_.jpg" width="360" height="516" title="someText" alt="someText">
</div>
<div class="col-md-4 border">
<img src="images/https://images-na.ssl-images-amazon.com/images/I/81EeCpMxY7L._SX355_.jpg" width="360" height="243" title="someText" alt="someText">
</div>
</div>
<div class="row">
<div class="col-md-8 border">
<img src="images/https://images-na.ssl-images-amazon.com/images/I/81EeCpMxY7L._SX355_.jpg" width="360" height="243" title="someText" alt="someText">
</div>
<div class="col-md-4 border">
<img src="images/https://images-na.ssl-images-amazon.com/images/I/81EeCpMxY7L._SX355_.jpg" width="360" height="243" title="someText" alt="someText">
</div>
</div>
</div><!-- container -->