html {
    background-color: black;
    color: #D3D3D3;
    font-size: 16px;
    font-family: -apple-system, "BlinkMacSystemFont", "Helvetica Neue", "Helvetica";
    padding: 20px;
    max-width: 700px;
    margin: 0 auto;
}

h1 {
    color: white;
}

h2, strong, a {
    color: gray;
}

a:hover, a:active {
    color: white;
}