| Col 1 | Col 2 | Col 3 |
|---|---|---|
| Cell a1 | Cell a2 | Cell a3 |
| Cell b1 | Cell b2 | Cell b3 |
Makes it easy to style <tr> element if it contains th elements.
(However, most of the time you can just tyle <thead> instead.)
tr:has(th) { background-color: orange; }
tr:has(td) { background-color: gray; }
| Col 1 | Col 2 | Col 3 |
|---|---|---|
| Cell a1 | Cell a2 | Cell a3 |
| Cell b1 | Cell b2 | Cell b3 |