body {
  padding: 0;
  margin: 0;
}
img {
  height: 100%;
}
#caja {
  height: 100%;
  text-align: center;
  page-break-after: always;
}
#caja-80 {
  height: 80%;
  text-align: center;
}
p.txt-cent {
  font-family: serif;
  line-height: 1.20em;
  font-size: 1.00em;
  margin-bottom: 0.00em;
  margin-top: 0.00em;
  text-indent: 0.00em;
  margin-right: 0.00em;
  margin-left: 0.00em;
  text-align: center;
  font-weight: normal;
  font-style: normal;
}