Floating UI | Scratchpad

Tether config

Enable tether

Take over CSS-based positioning to avoid overflow clipping.

Tether middleware

flip

Move the window to another side when its own would overflow the boundary.

shift

Slide the window along its bound edge to keep it inside the boundary.

Flip fallbacks

auto

Try the opposite side first, then whatever else fits.

chain

Walk a fixed list in order: right, left, top.