<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="row"> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> <div class="col-xs-12 col-sm-3 eq_block"> <div id="snt"></div> </div> </div>

.eq_block{ height: 288px; padding: 0; margin: 0; border:1px solid grey; } #snt{ height:100%; background-position: center center; background-size: cover; background-repeat: no-repeat; background-image: url('http://www.indre-reisid.ee/wp-content/themes/envision/lib/images/default-placeholder.png'); }

console.log(screen)