react-beautiful-dnd/src/view/dimension-types.js

A beautiful, accessible drag and drop library for lists with React.js

export type ClientRect = {|
  top: number,
  right: number,
  bottom: number,
  left: number,
  width: number,
  height: number,
|}

export type Margin = {|
  top: number,
  right: number,
  bottom: number,
  left: number,
|}