: These are browser-based sites (e.g., CroxyProxy or ProxySite ) where you simply paste a YouTube URL into a search bar to watch immediately without installing software.
.error-message background: #fee; color: #c33; padding: 15px; border-radius: 10px; margin-top: 15px; display: none; youtube proxy12345
// Update button styles document.querySelectorAll('.format-btn').forEach(btn => btn.classList.remove('active'); ); event.target.classList.add('active'); : These are browser-based sites (e