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CSS overflow: overlay

74.33

CSS

The `overlay` value of the `overflow` CSS property is a non-standard value to make scrollbars appear on top of content rather than take up space. This value is deprecated and related functionality being standardized as [the `scrollbar-gutter` property](mdn-css_properties_scrollbar-gutter).

Further reading:

  1. Can I use page for: CSS overflow: overlay
  2. MDN article on overflow values
  3. WebKit change to make "overflow: overlay" a synonym for "overflow: auto"