使用Primefaces dataExporter更改生成pdf的样式

.ui-datatable table {
  border: 1px solid #000;
  background-color: #fff;
  font-family: Arial, sans-serif;
}

.ui-datatable thead th {
  background-color: #ccc;
  font-weight: bold;
}

.ui-datatable tbody td {
  color: #000;
  font-size: 12px;
}

.ui-datatable tbody tr:nth-child(even) td {
  background-color: #f2f2f2;
}

.ui-datatable table {
  width: 100%;
}

.ui-datatable table {
  border-collapse: collapse;
}

.ui-datatable tbody td.ui-datatable-col-merged {
  background-color: #ccc;
}