Web Design in a Nutshell, 3rd Edition

Scrolling

The scrolling attribute within the frame element controls whether scrollbars appear within the frame, regardless of the frame’s contents.

The default setting is auto, which behaves like any browser window—no scrollbars display unless the contents are too big to fit entirely within the frame. The yes value should make scrollbars appear, even for mostly empty frames, however, most current browsers seem to treat it the same as auto. To make sure scrollbars never appear, even when the content is larger than the available space, set scrolling="no".

In Figure 14-5 both frames display the same text document, but scrolling is set to auto in the top and no in the bottom frame.