1천 회 노출당비용 (CPM)

<div class="panel"><div class="label">SAME $100 BUDGET</div><div class="columns"><div><span>CPM</span><b id="cpm">$10</b></div><div class="arrow">→</div><div><span>IMPRESSIONS</span><b id="imps">10,000</b></div></div><div class="blocks" id="blocks"></div><div class="scale">LOW CPM <i></i> HIGH CPM</div></div>

.panel{width:min(88%,480px);font:800 clamp(10px,max(2vmin,1vw),16px)/1.2 sans-serif}.label{text-align:center;color:var(--muted);letter-spacing:.14em}.columns{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:clamp(10px,3vmin,25px) 0}.columns>div:not(.arrow){background:var(--surface);border:1px solid var(--line);padding:clamp(8px,2vmin,15px);min-width:35%}.columns span{display:block;color:var(--muted);font-size:max(10px,1vw,.72em)}.columns b{display:block;color:var(--accent);font-size:clamp(19px,5vmin,42px)}.arrow{font-size:clamp(18px,5vmin,36px)}.blocks{display:grid;grid-template-columns:repeat(10,1fr);gap:clamp(3px,1vmin,8px)}.blocks i{aspect-ratio:1;background:var(--accent-3);opacity:.2;transition:opacity .45s,transform .45s}.blocks i.on{opacity:1;transform:scale(1.04)}.scale{display:flex;gap:7px;align-items:center;justify-content:space-between;margin-top:12px;color:var(--muted);font-size:max(10px,1vw,.75em)}.scale i{height:2px;background:var(--line);flex:1}@media(max-width:480px){.blocks i{aspect-ratio:auto;height:clamp(11px,4vmin,16px)}.columns{margin:8px 0}.scale{margin-top:8px}}

const blocks=document.querySelector('#blocks');blocks.innerHTML=Array.from({length:40},()=>'<i></i>').join('');let step=0;function draw(){const cpm=[5,10,20,25,20,10][step++%6],imps=100000/cpm;document.querySelector('#cpm').textContent='$'+cpm;document.querySelector('#imps').textContent=imps.toLocaleString();[...blocks.children].forEach((b,i)=>b.classList.toggle('on',i<Math.round(imps/500)))}draw();setInterval(draw,1200);