@page {
  margin: 0;
}
body {
  margin: 0;
  position: relative;
  box-sizing: border-box;
  page-break-after: always;
}

body.A3 {
  width: 297mm;
  height: 420mm;
}
body.A3.landscape .sheet {
  width: 420mm;
  height: 297mm;
}
body.A4 .sheet {
  width: 210mm;
  height: 297mm;
}
body.A4.landscape .sheet {
  width: 297mm;
  height: 210mm;
}
body.A5 .sheet {
  width: 148mm;
  height: 210mm;
}
body.A5.landscape .sheet {
  width: 210mm;
  height: 148mm;
}
body.letter .sheet {
  width: 216mm;
  height: 280mm;
}
body.letter.landscape .sheet {
  width: 280mm;
  height: 216mm;
}
body.legal .sheet {
  width: 216mm;
  height: 357mm;
}
body.legal.landscape .sheet {
  width: 357mm;
  height: 216mm;
}