body {
    margin: 0;
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        "Roboto",
        "Oxygen",
        "Ubuntu",
        "Cantarell",
        "Fira Sans",
        "Droid Sans",
        "Helvetica Neue",
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

code {
    font-family:
        source-code-pro,
        Menlo,
        Monaco,
        Consolas,
        "Courier New",
        monospace;
}