In the table below, pass your mouse over and table-row to swap out the background colors. Moving your cursor into another table-row will clear the :hover on the previous. Sliding your mouse out to the left or right of a table-row will result in :hover styles that stick.

Row 1, Cell 1 Row 1, Cell 2
Row 2, Cell 1 Row 2, Cell 2
Row 3, Cell 1 Row 3, Cell 2

The same effect can be seen on elements whose display property is set to table-row.

Row 1 Row 2 Row 3

State is restored when you hover a sibling element of the same display type.