PdfCSS:Tools shape practice shapes tools

@page{
    size: A5;
}
@page:left{
    margin: 4mm 24mm 16mm 8mm;
}
@page:right{
    margin: 4mm 8mm 16mm 24mm;    
}
h2{
    break-before: always;
}
div.thumbcaption{
    font-size: small;
}