ruby {
  display:inline-table;
  text-align:center;
  white-space:nowrap;
  text-indent:0;
  margin:0;
  padding: 0;
  vertical-align: 0em;
}

html>body ruby {
  vertical-align: 1em;
}

ruby>rb,ruby>rbc {
  display:table-row-group;
  line-height:120%;
}

ruby>rt,ruby>rbc+rtc {
  display:table-header-group;
  font-size:60%;
  line-height:40%;
  letter-spacing:0;
}

rp {
  display:none;
}