<div class="row">
  <div class="col-sm-2"><img class="img-responsive" src="img/een.png"></img></div>
  <div class="col-sm-2"><img class="img-responsive" src="img/twee.png"></img></div>
  <div class="col-sm-2"><img class="img-responsive" src="img/drie.png"></img></div>
  <div class="col-sm-2"><img class="img-responsive" src="img/vier.png"></img></div>
  <div class="col-sm-2"><img class="img-responsive" src="img/vijf.png"></img></div>
  <div class="col-sm-2"><img class="img-responsive" src="img/zes.png"></img></div>
</div>
</br>
<div class="row">
  <div class="col-sm-2"><img class="img-responsive" src="img/een.png"></img></div>
  <div class="col-sm-2"><img class="img-responsive" src="img/twee.png"></img></div>
  <div class="col-sm-2"><img class="img-responsive" src="img/drie.png"></img></div>
  <div class="col-sm-2"><img class="img-responsive" src="img/vier.png"></img></div>
  <div class="col-sm-2"><img class="img-responsive" src="img/vijf.png"></img></div>
  <div class="col-sm-2"><img class="img-responsive" src="img/zes.png"></img></div>
</div>