collection--grid-one-whole-till-one-third
collection (modifier) ├── collection__item
<div class="collection collection--grid-one-whole-till-one-third"> <div class="collection__item"> <img src="/images/placeholder-wide-480w.jpg"> </div> <div class="collection__item"> <img src="/images/placeholder-wide-480w.jpg"> </div> <div class="collection__item"> <img src="/images/placeholder-wide-480w.jpg"> </div> </div>