1. Canvas blend modes

    Method of defining the effect resulting from overlaying two layers on a Canvas element.

  2. CSS overflow: overlay

    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).

  3. navigator api: windowcontrolsoverlay

  4. virtualkeyboard api: overlayscontent

  5. windowcontrolsoverlay api

  6. windowcontrolsoverlaygeometrychangeevent api

  7. windowcontrolsoverlaygeometrychangeevent api: titlebararearect

  8. windowcontrolsoverlaygeometrychangeevent api: visible

  9. windowcontrolsoverlaygeometrychangeevent api: `windowcontrolsoverlaygeometrychangeevent()` constructor

  10. windowcontrolsoverlay api: `geometrychange` event

  11. windowcontrolsoverlay api: gettitlebararearect

  12. windowcontrolsoverlay api: visible

  13. xrsession api: domoverlaystate

  14. css property: --*: `env()`: window controls overlay variable `titlebar-area-height`

  15. css property: --*: `env()`: window controls overlay variable `titlebar-area-width`

  16. css property: --*: `env()`: window controls overlay variable `titlebar-area-x`

  17. css property: --*: `env()`: window controls overlay variable `titlebar-area-y`

  18. css property: overflow-block: overlay

  19. css property: overflow-inline: overlay

  20. css property: overlay

  21. css property: overlay: auto

  22. css property: overlay: none

  23. types: overflow: `overlay`