(работает)
<div class="store-big-image" style="background-image: url();"></div>
<div class="gallery-icon">
<img width="200" height="200" src="" class="" alt="">
</div>
<div class="gallery-icon">
<img width="200" height="200" src="" class="" alt="">
</div>
(не работает, хотя тоже самое)
<div class="store-big-image" style="background-image: url();"></div>
<div class="gallery-icon">
<img width="200" height="200" src="" class="" alt="">
</div>
<div class="gallery-icon">
<img width="200" height="200" src="" class="" alt="">
</div>