div > div {
    position: absolute;
    width: 100%;
    height: 25vw;
    top: calc(50vh - 27vw / 2 - 3vw);
    text-align: center;
    font-family: arial,sans-serif;
}

div > div#natredigerare {
    font-size: 10vw;
    animation: work 1.8s infinite both;
}
div > div#message {
    padding-top: 20vw;
    
    font-size: 5vw;
}
@keyframes work {
    0% { transform: translate(0, 0); }
    25% { transform: translate(-0.5vw, 2vw); }
    49.9999% { transform: translate(0, 0); }
    50% { transform: translate(0, 0) rotateY(180deg); }
    75% { transform: translate(0.5vw, 2vw) rotateY(180deg); }
    99.9999% { transform: translate(0, 0) rotateY(180deg); }
    100% { transform: translate(0, 0); }
}