<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>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<div class="container">
<div class="col-md-3 text-xs-center">
<label class="image-checkbox" title="England">
<img src="http://www.prepbootstrap.com/Content/images/template/gamesschedule/england.jpg" />
<input type="checkbox" name="team[]" value="england" checked="checked" />
</label>
</div>
<div class="col-md-3 text-xs-center">
<label class="image-checkbox" title="Germany">
<img src="http://www.prepbootstrap.com/Content/images/template/gamesschedule/germany.jpg" />
<input type="checkbox" name="team[]" value="germany" />
</label>
</div>
<div class="col-md-3 text-xs-center">
<label class="image-checkbox" title="Italy">
<img src="http://www.prepbootstrap.com/Content/images/template/gamesschedule/italy.jpg" />
<input type="checkbox" name="team[]" value="italy" />
</label>
</div>
<div class="col-md-3 text-xs-center">
<label class="image-checkbox" title="Spain">
<img src="http://www.prepbootstrap.com/Content/images/template/gamesschedule/spain.jpg" />
<input type="checkbox" name="team[]" value="spain" />
</label>
</div>
</div>