Collector pipeline

<div class="demo"><div class="title">RECEIVE → PROCESS → EXPORT</div><div class="scene"><div class="pipe-flow"><div>receive<small>user=17<br>status=500</small></div><span>→</span><div>process<small>remove user</small></div><span>→</span><div>export<small>status=500</small></div></div></div></div>

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let n=0;function draw(){document.querySelectorAll(".pipe-flow>div").forEach((d,i)=>d.classList.toggle("active",i===n));n=(n+1)%3}draw();setInterval(draw,700)