html,
body,
#zeta {
    margin: 0;
}

body {
    min-height: 100svh;
    background: #000;
    display: flex;
    justify-content: center;
    align-items: center;
}

#zeta,
a {
    color: #a0f;
    line-height: 1;
    font-family: "Source Code Pro", monospace;
    font-size: small;
}

::selection {
    background: #a0f;
    color: #fff;
}

::-moz-selection {
    background: #a0f;
    color: #fff;
}