.omnummering {
  padding-top: 0.5em;
  }

.omnummering table th {
  border-bottom: 1px solid lightgray;
  font-weight: normal;
  text-align: left;
  }

.omnummering table tr:nth-child(2) td {
  padding-top: 3px;
  }

.omnummering table td:nth-child(1) {
  text-align: right;
  padding-right: 0.5em;
  width: 20px;
  }

.omnummering table td:nth-child(2) {
  padding-right: 0.5em;
  width: 300px;
  }