类型 OverlayPlacement

API 文档由 Go 源码生成，内容为英文。

type OverlayPlacement struct {
	Side  OverlaySide
	Align OverlayAlign
	// SideOffset is the gap between the anchor and the overlay; AlignOffset
	// shifts the overlay along the anchor's edge.
	SideOffset  float32
	AlignOffset float32
	// Margin is the distance the overlay keeps from the viewport's edges.
	Margin float32
}

OverlayPlacement describes where an overlay goes relative to its anchor. It is the Positioner of Base UI's popups: side, align, and the two offsets.