Selective trading up and down

<div class="trade"><div class="shop"><div class="option" id="basic">BASIC <strong>$5</strong></div><div class="traveler" id="traveler">SHOPPER</div><div class="option" id="premium">PREMIUM <strong>$9</strong></div></div><button id="proof">SHOW VALUE PROOF</button><div class="reason" id="reason">No clear advantage shown</div></div>

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let on=false;const btn=document.querySelector('#proof');function draw(){document.querySelector('#basic').classList.toggle('on',!on);document.querySelector('#premium').classList.toggle('on',on);document.querySelector('#traveler').classList.toggle('move',on);document.querySelector('#reason').textContent=on?'Proven durability + convenience':'No clear advantage shown';btn.textContent=on?'HIDE VALUE PROOF':'SHOW VALUE PROOF'}btn.onclick=()=>{on=!on;draw()};draw();setTimeout(()=>{on=true;draw()},650);setTimeout(()=>{on=false;draw()},2600);