Markup: templates/output/04-elements/images/lightbox-gallery.html
<div class="c-textmedia__gallery" data-ce-columns="2" data-ce-images="4">
<div class="ce-row">
<div class="ce-column">
<figure class="image"><a class="lightbox" href="https://placeholder.in2code.de/1400x1050" data-type="image" data-gallery="group"><img src="https://placeholder.in2code.de/1400x1050" width="900" height="600" alt="Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa."/></a></figure>
</div>
<div class="ce-column">
<figure class="image"><a class="lightbox" href="https://placeholder.in2code.de/1400x1050" data-type="image" data-gallery="group"><img src="https://placeholder.in2code.de/1400x1050" width="900" height="600" alt="Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa."/></a></figure>
</div>
</div>
<div class="ce-row">
<div class="ce-column">
<figure class="image"><a class="lightbox" href="https://placeholder.in2code.de/1400x1050" data-type="image" data-gallery="group"><img src="https://placeholder.in2code.de/1400x1050" width="900" height="600" alt="Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa."/></a></figure>
</div>
<div class="ce-column">
<figure class="image"><a class="lightbox" href="https://placeholder.in2code.de/1400x1050" data-type="image" data-gallery="group"><img src="https://placeholder.in2code.de/1400x1050" width="900" height="600" alt="Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa."/></a></figure>
</div>
</div>
</div>
Source:
assets/sass/04-elements/_elements.images.scss, line 175