body { 
    background: #000; 
    color: white; 
    font-family: Arial; 
    text-align: center;
}

#videoElement {
    width: 640px;
    height: 480px;
    border: 3px solid red;
    margin: 20px auto;
}

button {
    padding: 15px 30px;
    background: #ff0000;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 18px;
}