Tables

| Vaccine        | Given | Due again |
| :------------- | :---: | --------: |
| Six-in-one     | march | 12 months |
| Rabies         | march | 12 months |

• Colons in the rule under the header lean a column: :--- left, :---: centre, ---: right.
• A column's width rides in that rule: four dashes or more set it, ten pixels a dash; three leave it to the page. Other readers ignore how many dashes there are. See Tables.
• A | inside a cell is written \|.
• A cell holds a line of words and marks, not blocks.