body {
    counter-reset: section;
}
h2:before {
    counter-increment: section;
    content: counter(section) ". ";
}

h2 {
    counter-reset: subsection;
}
h3:before {
    counter-increment: subsection;
    content: counter(section) "." counter(subsection) ". ";
}

h3 {
    counter-reset: subsubsection;
}
h4:before {
    counter-increment: subsubsection;
    content: counter(section) "." counter(subsection) "." counter(subsubsection) ". ";
}

a[title] {
    color: blue;
}

em {
    text-decoration: underline;
    font-style: normal;
}

.katex {
	font-size: 1em;
}

.katex-display {
	font-size: 1em;
}