<div class="row">
<div class="block"></div>
<div class="block"></div>
<div class="block"></div>
<div class="block"></div>
</div>
?<div class="row">
<div class="block"></div>
<div class="right">
<div class="block"></div>
<div class="block"></div>
<div class="block"></div>
</div>
</div>