As with the following markup, place the elements as follows: 
.photo { display: inline-block; vertical-align: top; max-width: 160px; width: 100%; margin: 0px 20px 20px 0; background:red; } <div class="photo"> <div class="photo__item photo__item_1"></div> </div> <div class="photo"> <div class="photo__item photo__item_2"></div> </div> <div class="photo"> <div class="photo__item photo__item_3"></div> </div> <div class="photo"> <div class="photo__item photo__item_4"></div> </div> <div class="photo"> <div class="photo__item photo__item_5"></div> </div> <div class="photo"> <div class="photo__item photo__item_6"></div> </div>