html, body {
    background: darkcyan;
    height: 100%;
    margin: 0;
}
div.container {
    height: 75%;
    position: relative }
div.container p {
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
        white-space: nowrap;
        font-size: min(5em, 9vw);
        font-weight: bold;
        color: white;
        font-family: monospace;
}