body
{
    margin: auto;
    background-color: black;
    max-width: min(70ch, 90vw);
    color: white;
    font-family: serif;
    font-size: max(8pt, min(14pt, 3vw));
    line-height: 1.4;
}

header
{
    text-align: center;
}

hgroup
{
    margin-top: 1em;
    margin-bottom: 1em;
}

hgroup *
{
    margin: 0;
}

hr
{
    width: 100%;
}

code
{
    white-space: pre-wrap;
    font-size: 0.8em;
    font-family: monospace;
    border: solid;
    border-color: #444;
    border-width: thin;
}

pre code
{
    white-space: pre;
    line-height: 1.2;
    display: block;
    overflow-x: auto;
    max-width: 100%;
    padding: 0.5em;
    border-color: white;
}

a
{
    color: #0BF;
    text-decoration: none;
}

table
{
    margin: auto;
}

table, th, td
{
    border-width: 1pt;
    border-style: solid;
    border-collapse: collapse;
}

td, th
{
    padding-left: 1ex;
    padding-right: 1ex;
}

@font-face
{
    font-family: 'STIX Two Math';
    src: url('/files/mathfonts/STIXTwoMath-Regular.woff2'),
         url('/files/mathfonts/STIXTwoMath-Regular.woff');
}

math
{
    font-family: 'STIX Two Math', serif;
}