html {
    background-color: #223;
    color: white;
    font-family: 'Fira Sans', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    position: fixed;
    top: 50vh;
    left: 50vw;

    box-sizing: border-box;
    text-align: center;

    display: block;

    transform: translate(-50%, -50%);
}

p {
    display: inline-block;
    background-color: #fff2;
    padding: 4px;
    border-radius: 4px;
    margin: 2px 0;
}

code {
    background-color: #0006;
    padding: 2px 4px;
    position: relative;
    border-radius: 4px;
    bottom: 1px;

    font-family: 'Fira Code', 'Courier New', Courier, monospace;
    font-size: 85%;
}

a:link,
a:visited {
    color: #99f;
}