Scrollbars allow users to control content visibility.  The size of the thumb indicates the amount of unseen content.  


  • Minimize the use of horizontal scrollbars by laying out content vertically as much as possible.
  • While horizontal scrolling is unavoidable in a datagrid, strive to choose a set of default columns that minimize scrolling.
  • Never use horizontal scrolling in a table of contents (as in multipage dialogs, wizards, and the third level of navigation in a tab).
  • Avoid vertical scrolling of more than two pages of content.  If you have more pages, consider breaking the content into separate categories or pages.
  • Don't allow the scrolling of content inside other scrolling content, such that double scroll bars appear.
  • Don't bury important controls in areas that scroll off the visible content area by default.

Visual Specification

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