Flexie

Enables flexbox layouts in Internet Explorer 6-9 and Opera 10.0+, where native support is absent, as confirmed by the browser support list in the README.

Implements all key properties from the 2009 spec, including box-orient, box-align, box-direction, box-pack, box-flex, box-flex-group, and box-ordinal-group, allowing full use of the old flexbox model.

Attempts to normalize inconsistencies between Webkit and Gecko browsers, such as default values for box-align and box-pack, ensuring more uniform behavior across supported browsers.

Provides an asynchronous API for programmatically creating, updating, retrieving, and destroying flexbox instances, useful for interactive or dynamically changing layouts.