body{
    /*background-color: transparent;*/
    /*background: linear-gradient(#e66465, #9198e5);*/
    height: 100vh;
    width: 100vw;
    margin:0;
    overflow: hidden;
    background-color: white;
    color:white;
    /*animation: ;*/
    animation-fill-mode: forwards;
    position: absolute;
}

@keyframes dark {
    100% {background-color: black;}
}
#nextbut {
    border:none;
    background-color:transparent;
    height:30%; width:30%;
    display:block;
    margin: auto;
}