Use contextual classes to color table rows or cells.
| Class | 1 | 2 | 3 | 
|---|---|---|---|
| active | 1 | 2 | 3 | 
| success | 1 | 2 | 3 | 
| error | 1 | 2 | 3 | 
| warning | 1 | 2 | 3 | 
| info | 1 | 2 | 3 | 
<!-- On rows -->
  <tr class="active">...</tr>
  <tr class="success">...</tr>
  <tr class="warning">...</tr>
  <tr class="danger">...</tr>
  <tr class="info">...</tr>
  <!-- On cells (`td` or `th`) -->
  <tr>
    <td class="active">...</td>
    <td class="success">...</td>
    <td class="warning">...</td>
    <td class="danger">...</td>
    <td class="info">...</td>
  </tr>