body {
    background: #111111;
    margin: 0px;
    user-select: none;
}

header {
    color: #f1f1f1;
    font-family: sans-serif;
    font-size: 15px;
    padding: 5px;
    position: sticky;
    top: 0;
}

#content {
    padding: 100px;
    padding-top: 25px;
    text-align: center;
    animation: mySlide;
    animation-duration: 1s;
    animation-timing-function: ease;
}

a:link {
    color: #f1f1f1;
    text-decoration: none;
}

a:hover {
    color: #8dafd4;
}

@keyframes mySlide{
    from{margin-top: 15%; opacity: 0%;}
    tp{margin-top: 0%; opacity: 100%;}
}