// Fullscreen fullscreenBtn.addEventListener('click', () => if (!document.fullscreenElement) video.parentElement.requestFullscreen(); else document.exitFullscreen();
// Update progress bar & time function updateProgress() const percent = (video.currentTime / video.duration) * 100; progressFilled.style.width = $percent% ; timeCurrentSpan.textContent = formatTime(video.currentTime); custom html5 video player codepen
button, .speed-select background: none; border: none; color: white; font-size: 18px; cursor: pointer; padding: 6px 8px; border-radius: 8px; transition: background 0.2s; // Fullscreen fullscreenBtn