가치 기반 가격

<div class="v"><div class="cap">CUSTOMER OUTCOME <b id="out">$120</b></div><input id="val" type="range" min="80" max="200" value="120"><div class="bar"><i id="share"></i><em id="retain"></em></div><div class="legend"><span>PRICE <b>$60</b></span><span>VALUE LEFT <b id="left">$60</b></span></div></div>

.v{width:min(90%,560px);font:800 clamp(10px,max(2.4vmin,1vw),16px)/1.25 sans-serif}.cap,.legend{display:flex;justify-content:space-between;gap:8px}.cap b{font-size:clamp(21px,6vmin,43px);color:var(--accent)}input{width:100%;accent-color:var(--accent);margin:clamp(10px,3vmin,22px) 0}.bar{height:clamp(33px,9vmin,65px);display:flex;border:2px solid var(--fg);overflow:hidden}.bar i{width:50%;background:var(--accent);transition:.35s}.bar em{flex:1;background:var(--accent-2)}.legend{margin-top:9px;color:var(--muted);font-size:clamp(10px,max(2vmin,1vw),13px)}.legend b{color:var(--fg)}@media(min-width:700px){body>:first-child{transform:scale(1.25);transform-origin:center}}

const slider=document.querySelector('#val');const draw=()=>{const v=+slider.value;document.querySelector('#out').textContent='$'+v;document.querySelector('#left').textContent='$'+(v-60);document.querySelector('#share').style.width=(60/v*100)+'%'};slider.oninput=draw;setTimeout(()=>{slider.value=180;draw()},650);setTimeout(()=>{slider.value=120;draw()},2600);