1. HEIF/ISO Base Media File Format

    HEIF (High Efficiency Image File Format) is a standard developed by the Moving Picture Experts Group (MPEG) for storage and sharing of images and image sequences. Can use `.heif` or `.heic` file extensions.

  2. Picture element

    A responsive images method to control which image resource a user agent presents to a user, based on resolution, media query and/or support for a particular image format

  3. Picture-in-Picture

    Allows websites to create a floating video window that is always on top of other windows so that users may continue consuming media while they interact with other sites or applications on their device.

  4. document api: exitpictureinpicture

  5. document api: pictureinpictureelement

  6. document api: pictureinpictureenabled

  7. htmlpictureelement api

  8. htmlvideoelement api: autopictureinpicture

  9. htmlvideoelement api: disablepictureinpicture

  10. htmlvideoelement api: `enterpictureinpicture` event

  11. htmlvideoelement api: `leavepictureinpicture` event

  12. htmlvideoelement api: requestpictureinpicture

  13. pictureinpictureevent api

  14. pictureinpictureevent api: `pictureinpictureevent()` constructor

  15. pictureinpictureevent api: pictureinpicturewindow

  16. pictureinpicturewindow api

  17. pictureinpicturewindow api: height

  18. pictureinpicturewindow api: `resize` event

  19. pictureinpicturewindow api: width

  20. shadowroot api: pictureinpictureelement

  21. headers http header: feature-policy: picture-in-picture