CSS Overflow

overflow: visible; is the default setting for all elements

But overflow can also be set to hidden, scroll, or auto.

Read more at http://www.w3schools.com/cssref/pr_pos_overflow.asp

This div's contents will get cut off because CSS has set the overflow to be hidden, like so overflow: hidden;

This div's contents will get cut off. This div's contents will get cut off. This div's contents will get cut off. This div's contents will get cut off. This div's contents will get cut off. This div's contents will get cut off. This div's contents will get cut off. This div's contents will get cut off. This div's contents will get cut off. This div's contents will get cut off. This div's contents will get cut off.
This div's contents will NOT get cut off because CSS has set the overflow to be visible, like so overflow: visible;
This is the default setting for an element.

This div's contents will NOT be cut off. This div's contents will NOT be cut off. This div's contents will NOT be cut off. This div's contents will NOT be cut off. This div's contents will NOT be cut off. This div's contents will NOT be cut off. This div's contents will NOT be cut off. This div's contents will NOT be cut off. This div's contents will NOT be cut off. This div's contents will NOT be cut off. This div's contents will NOT be cut off.
This div's contents will scroll because CSS has set the overflow to be scrolling, like so overflow: scroll;

This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll. This div's contents will scroll.