div.root-content {
  margin-right: 60px;
  margin-left: 60px;
}
table {
  border-collapse: collapse;
}
td {
  text-align: left;
  vertical-align: top;
  border: solid 2px gray;
  padding: 5px;
}
tr.backangabe td {
  background-color: #000000;
  color: #FF0000;
}
p.backtip {
  text-align: left;
}