html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    background-color: aquamarine;
    color: white;
    font-weight: 400;
    font-family: "serif";
}
#answer {
    height: 100%;
    font-size: 200pt;
    display: flex;
    align-items: center;
    justify-content: center;
}
body {
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    height: 100vh;
}

@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}