<div class="product-slider-box clearfix">
 {if $files?}
    <div class="main-slider-box">
      <div class="product-detail-slider-sidebar popup-gallery">
    {foreach $files as $file}
        <div class="item-slider">
          <a href="{$file['url']}">
            <img id="zoom_05" data-zoom-image="{$file['zoom']}" src="{$file['big']}">
          </a>
        </div>
    {/foreach}
      </div>
    </div>

    <div class="gallery-box">
      <div class="product-slider-gallery-sidebar">
        {foreach $files as $file}
        <div class="gallery-item">
          <img src="{$file['small']}">
        </div>
       {/foreach}
      </div>
    </div>
    {/if}
</div>