The positioning portal is a low level React component to build all kinds of absolutely positioned flyouts which are anchored to another element in the viewport. This can be used to create dropdowns, tooltips, context menus, etc.
Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.