border-collapse did not show up in my list of styles regarding borders. Why? Because it is there specifically for tables.
This is column 1 | This is column 2 | This is column 3 | This is column 4 |
---|---|---|---|
Here's data | Here's data | Here's data | Here's data |
Here's data | Here's data | Here's data |
Now the gap is gone! The opposite effect would be border-collapse:separate;
.
And *whoops* the blue border of <tr> suddenly shows up. We didn't want that now, did we.