body {
    background-color: #fdff9c;
 
   
}

body::before {
    content: "";
    background-image: url(../bilder/AcggHintergrund0.png);
    filter: blur(2px);
    position:fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}