.ball {
    border-radius: 50%;
    position: absolute;
    background: white;
}

.ball.animated {
    animation: colorchange 1s;
}

@keyframes colorchange {
    0% {
        background-color: red;
    }

    100% {
        background-color: white;
    }
}

#tutorial {
    position: absolute;
    top: 50%;
    left: 50%;
    width: max-content;
    height: max-content;
    transform: translate(-50%, -50%);
    border-radius: 10%;
    overflow: hidden;
    font-family: 'Roboto', sans-serif;
    font-size: x-large;
    user-select: none;
}

.fade-out {
    opacity: 0;
    transition: opacity 2s;
    display: none 2s;
}