.gallery-container{display:flex;justify-content:center}.thumbnails{display:flex;flex-direction:column;gap:8px}.thumbnails img{width:40px;height:40px;cursor:pointer}.scrollbar{width:1px;height:400px;background:#ccc;display:block;margin:0 0 0 8px}.thumb{width:1px;position:absolute;height:0;background:#fff}.slides{margin:0 16px;display:grid;grid-auto-flow:row;gap:1rem;width: calc(540px + 1rem);padding:0 .25rem;height:400px;overflow-y:auto;overscroll-behavior-y:contain;scroll-snap-type:y mandatory;scrollbar-width:none}.slides>div{scroll-snap-align:start}.slides img{width:540px;object-fit:contain}.slides::-webkit-scrollbar{display:none}img{border-radius:4px}Unrelated styles :root{font-size:18px}body{line-height:1.5;justify-content:center;align-items:center}.content{width:100%;max-width:800px}h2{font-size:24px}h2 small{opacity:.7;font-weight:normal}