Fullscreen

Where the Fullscreen API is available, the toolbar shows a toggle that puts the dialog in fullscreen. Try it from the toolbar:

• Its accessible name switches between labels.enterFullscreen and labels.exitFullscreen, and the icon between icons.enterFullscreen and icons.exitFullscreen.
• It follows changes made outside the lightbox, such as the browser's own Escape.
• Closing the viewer leaves fullscreen.
• Where the API is missing, for example on iPhone, the button is not rendered. The viewer already covers the window there.

<Lightbox fullscreen={false} {...props} />

fullscreen={false} hides the button everywhere.