#skateboard{
    animation-name: drivingAround;
    animation-duration: 9s;
    animation-fill-mode: forwards;
    animation-iteration-count: infinite;
    width: 350px;
    height: 300px;
}

@keyframes drivingAround{
    0%{
        transform: translateX(0px);
    }
    48% {
        transform: translateX(600px);
    }
    50%{
        transform: rotateY(180deg) translateX(-600px);
    }
    98%{
        transform: translateX(0px) rotateY(180deg);
    }
    100%{
        transform: translateX(0px);
    }
}

/* solution */
article {
    position: relative;
}
    article section {
    position: absolute;
    top: 2.44em;
    width: 700px;
    left: -700px;
    padding: 0 lem 0.5em 0.5em;
    background-color: Orgba(16, 16, 16, 0.95);
    transition: transform 0.5s;
    }
    article section nav {
    width: 110%;
    text-align: right;
    background-color: Orgba(16, 16, 16, 0.95);
    padding: 0.5em;
    }
    .visible {
    transform: translateX(690px);
    }