3단계 가격표

<div class="tiers"><div class="cards"><div data-tier="0"><small>GOOD</small><strong>$19</strong><span>10 projects</span></div><div data-tier="1"><small>BETTER</small><strong>$49</strong><span>50 projects</span></div><div data-tier="2"><small>BEST</small><strong>$99</strong><span>Unlimited</span></div></div><label>PROJECTS NEEDED <b id="need">35</b><input id="work" type="range" min="1" max="90" value="35"></label><p id="recommend">BETTER FITS THIS NEED</p></div>

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const r=document.querySelector('#work');function draw(){const n=+r.value,t=n<=10?0:n<=50?1:2;document.querySelector('#need').textContent=n;document.querySelectorAll('[data-tier]').forEach((e,i)=>e.classList.toggle('on',i===t));document.querySelector('#recommend').textContent=['GOOD','BETTER','BEST'][t]+' FITS THIS NEED'}r.oninput=draw;draw();setTimeout(()=>{r.value=72;draw()},600);setTimeout(()=>{r.value=35;draw()},2600);