<div class="slider" id="slider-model-viewer">
 <div class="slides">
   {% assign posters = ProductVRPosters | split: ',' %}
 
   {% for poster in posters %}
     {% unless forloop.index0 == 0 %}
       <button
         class="slide{% if forloop.index0 == 1 %} selected{% endif %}"
         onclick="switchSrc(this, {{ forloop.index0 }})"
         style="background-image: url('{{ poster }}');"
       ></button>
     {% endunless %}
   {% endfor %}
 </div>
</div>