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Modify the code in the sidebar to see changes here instantly.
.card { padding: 20px; background: var(--surface-container-high); border: 1px solid var(--stroke-emphasis); border-radius: 12px; box-shadow: 0 4px 6px rgba(0,0,0,0.1);}h1 { color: var(--primary); }button { background: var(--primary); color: white; border: none; padding: 8px 16px; border-radius: 6px; cursor: pointer;}
const btn = document.getElementById('counterBtn');let count = 0;if (btn) { btn.onclick = () => { count++; btn.innerText = 'Clicks: ' + count; };}