@keyframes rgbspin {
    0%   {color:red;transform: rotateY(0deg);}
    20%  {color:violet;}
    40%  {color:lightskyblue;}
    60%  {color:lightgreen;}
    80%  {color:yellow}
    100% {color:red;transform: rotateY(360deg);}
}

@keyframes fade {
    0%   {background-color: rgb(44,44,44)}
    100% {background-color: rgb(0,0,0)}
}

body {
    background-color: rgb(44,44,44);
    font-size:25px;
    font-family: "Comic Sans MS", cursive, sans-serif;
    animation: fade 2s linear 10s 1;
}

.ded {
    position: absolute;
    z-index: -1;
    top: 0;
    left: 0;
    width: 100%; 
    height: 100%;
    object-fit: cover;
}

#center {
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

h1 {
    text-align: center;
    animation: rgbspin 2s linear 5;
}