Revise paste Teleprompter

<!DOCTYPE html>
<html lang="es">
<head>
    <meta charset="UTF-8">
    <title>Teleprompter Webcam</title>
    <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap" rel="stylesheet">
    <style>
        body {
            background-color: #1a1a1a;
            margin: 0;
            display: flex;
            justify-content: center;
            font-family: 'Roboto', sans-serif;
            overflow: hidden;
        }

#prompter-container {
            width: 400px;
            height: 180px;
            background-color: black;
            position: fixed;
            top: 0;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

#scroll-content {
            color: white;
            padding: 20px;
            text-align: center;
            white-space: pre-wrap;
            position: relative;
            top: 180px; 
        }

.controls-hint {
            position: fixed;
            bottom: 20px;
            color: #555;
            font-size: 12px;
            text-align: center;
            width: 100%;
        }
    </style>
</head>
<body>

<div id="prompter-container">
        <div id="scroll-content">
            Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Curabitur pretium tincidunt lacus. Nulla gravida orci a odio. Nullam varius, turpis et commodo pharetra, est eros bibendum elit, nec luctus magna felis sollicitudin libero. Mauris feugiat iaculis varius. Aenean ut diam lorem. Fusce eleifend rhoncus congue. Tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
        </div>
    </div>

<div class="controls-hint">
        Espacio: Play/Pausa | Flechas Arriba/Abajo: Velocidad | Flechas Izquierda/Derecha: Tamaño letra
    </div>

function updateScroll() {
            if (!isPaused) {
                scrollPos -= speed;
                content.style.top = scrollPos + "px";

// Reiniciar si el texto termina
                if (Math.abs(scrollPos) > content.offsetHeight) {
                    scrollPos = 180;
                }
            }
            requestAnimationFrame(updateScroll);
        }

window.addEventListener('keydown', (e) => {
            switch(e.key) {
                case ' ':
                    isPaused = !isPaused;
                    break;
                case 'ArrowUp':
                    speed += 0.5;
                    break;
                case 'ArrowDown':
                    speed = Math.max(0.5, speed - 0.5);
                    break;
                case 'ArrowRight':
                    fontSize += 2;
                    content.style.fontSize = fontSize + "px";
                    break;
                case 'ArrowLeft':
                    fontSize = Math.max(12, fontSize - 2);
                    content.style.fontSize = fontSize + "px";
                    break;
            }
        });

content.style.fontSize = fontSize + "px";
        updateScroll();
    </script>
</body>
</html>