body {
    font-family: "Press Start 2P", cursive;
    padding: 0;
    margin: 0;
    background-color: black;
}

header {
    color: yellow;
    text-align: center;
    
}

main {
    height: 80vh;
    display: flex;
    justify-content: center;
    align-items: center;
}
#start {
    text-decoration: none;
    color: red;
    font-size: 4rem ;
    text-shadow: 0 0 0 #fff;
    animation: rainbow 4s infinite ease-in-out;
}
#start:hover {
    transform: scale(1.2);
    text-shadow: 0.2rem 0.2rem 0 #fff;

}
@keyframes rainbow {
    0%  {
        color: red;
    }
    25% {
        color: blue;
    }
    50% {
        color: yellow;
    }
    100% {
        color: green;
    }
}