Elementor: Loop-Template -> Post-Widget + Filterbar

Filterbar:

<div id="portfolio-filter-box">
	<div class="filterbox">
		<div id="clickme"></div> 
		<div class="elementor-portfolio__filters">
			<div class="elementor-portfolio__filter-elements">						
				<div class="elementor-portfolio__filter" data-filter="*">show</div>
				<div class="elementor-portfolio__filter" data-filter=".category-vorschau">vorschau</div>
				<div class="elementor-portfolio__filter" data-filter=".category-aktuell">aktuell</div>
			</div>
		</div>
	</div>
</div>