@font-face {
    font-family: 'Calculator';
    src: url('font/digit.ttf') format('truetype');
}

body {
    background: url('starfield.svg') no-repeat center center fixed;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color: green;
    font-size: 6vw;
    font-family: Calculator, monospace;

    overflow: hidden;
    position: relative;
}

#countdown {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 1000;
}

#starfield {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}