body{
    background-color: black;
    color: white;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 5rem;
}

div{
    text-align: center;
    position: fixed;
    opacity: 0;
    width: 100%;
    margin-top: 8%;
}

video{
    position: fixed;
    width: 240;
    height: 240;
    top: 60%;
    left: 50%;
    margin-top: -120px;
    margin-left: -120px;
}

#eins{
    animation: show 4s ease 0s 1 normal forwards;
}

#zwei{
    animation: show-ever 4s ease 4.2s 1 normal forwards;
}

@keyframes show{
    0% {opacity: 0;}
    50% {opacity: 100;}
    100% {opacity: 0%;}
}

@keyframes show-ever{
    0% {opacity: 0;}
    100% {opacity: 100;}
}