Scrollbars on block elements
overflow-block

Specify how to handle a block element that has too much text to fit inside its width or height.
Property values
This property is the same as overflow
except that it applies only to block level elements. (Not all browsers support this property.)
Use one of these keywords:
visible | The text simply overflows the boundaries and overruns whatever else is there. |
hidden | The text is clipped at the right and bottom boundaries and is not visible. |
scroll | Vertical and horizontal scrollbars are always visible, but are only enabled if the text is too wide or too high to fit. |
auto | If the text fits, no scrollbars are shown. If the text is too wide or too high to fit, scrollbars are shown and enabled. |
Examples
overflow-block: scroll;