{% set img_url = '../build/images/magazin/' ~ img ~ '.jpg' %}
{% set img_url_s = '../build/images/magazin/' ~ img ~ 's.jpg' %}
<div class="carousel-item active">
    <picture>
        <source srcset="{{ asset( img_url ) }}" media="(min-width: 768px)"  />
        <img class="img-fluid " src="{{ asset( img_url_s ) }}" width="768" height="1040" alt="PartnerwahlTest"  />
   </picture>
    <div class="attribute-caption pb-3"><div class="attribute-copyright"><span class="ezstring-field">Foto: {{ copyright }}/adobestock.com</span></div></div>
</div>