.omnummering {
  padding-top: 0.5em;
  }

.omnummering table th {
  background-color: #E6E6E6; 
  border-bottom: 1px solid #FAFAFA;
  font-weight: normal;
  padding-left: 0.5em;
  text-align: left;
  }

.omnummering table th:nth-child(1) {
  border-right: 1px solid #FAFAFA;
  width: 150px;
  }

.omnummering table th:nth-child(2) {
  border-right: 1px solid #FAFAFA;
  width: 150px;
  }

.omnummering table th:nth-child(3) {
  width: 300px;
  }

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

.omnummering table td {
  padding-left: 0.5em;
  }