Price anchoring

<div class="anchor"><div class="top">REFERENCE <b id="ref">$120</b></div><div class="beam"><span id="gap">$41 GAP</span></div><div class="actual">SAME OFFER <strong>$79</strong></div><input id="anchor" type="range" min="90" max="160" value="120"></div>

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const r=document.querySelector('#anchor');function draw(){document.querySelector('#ref').textContent='$'+r.value;document.querySelector('#gap').textContent='$'+(r.value-79)+' GAP'}r.oninput=draw;setTimeout(()=>{r.value=150;draw()},600);setTimeout(()=>{r.value=100;draw()},2600);