BafS/Gutenberg

// Experimental

h1,
article {
    page-break-before: always;
}

body {
    counter-reset: h1num h2num h3num h4num figurenum;
    padding: 0;
    text-align: justify;
}

h1:before {
    content: counter(h1num) '. ';
    counter-increment: h1num;
}

h2:before {
    content: counter(h1num) '.'counter(h2num) '. ';
    counter-increment: h2num;
}

h3:before {
    content: counter(h1num) '.' counter(h2num) '.'counter(h3num) '. ';
    counter-increment: h3num;
}

h4:before {
    content: counter(h1num) '.' counter(h2num) '.'counter(h3num) '.' counter(h4num) '. ';
    counter-increment: h4num;
}

figcaption:before {
    content: counter(h1num) '-' counter(figurenum) '. ';
    counter-increment: figurenum;
}

figcaption {
    margin: 0 auto;
    max-width: 100%;
    text-align: center;
}

img,
table {
    margin: 0 auto;
}

// Not supported by all browsers
@page {
    margin-bottom: 2.5cm;
    margin-top: 2.5cm;
}

@page :left {
    margin-left: 4cm;
    margin-right: 3cm;
}

@page :right {
    margin-left: 3cm;
    margin-right: 4cm;
}