Sticky panel — stays pinned while the content scrolls.
Scrollable content row 1
Scrollable content row 2
Scrollable content row 3
Scrollable content row 4
Scrollable content row 5
Scrollable content row 6
Scrollable content row 7
Scrollable content row 8
Scrollable content row 9
Scrollable content row 10
Scrollable content row 11
Scrollable content row 12