body { 
    margin: 0;
    width: 100vw;
    height: 100vh;
    display: grid;
    justify-items: center;
    align-items: center;
}

#background-animation {
    position: absolute;
    z-index: -1;
    filter: opacity(0.66);
}
#placeholder {
    width: 328px;
    font-family: monospace;
}
#placeholder h3 {
    text-align: justify;
}
@media (prefers-color-scheme: dark) {
    #background-animation {
        filter: opacity(0.2);
    }
}