* {
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        "Apple Color Emoji",
        "Segoe UI Emoji",
        "Segoe UI Symbol",
        sans-serif;
}

#container {
    min-width: 300px;
    max-width: 2000px;
    margin: 1em auto;
}

table {
    border-collapse: collapse;
}

table td,
table th {
    border: 1px solid silver;
    padding: 0.5em;
}
