composed-offset-position
· This provides a set of ponyfills to achieve the same behavior of `offsetParent`, `offsetLeft` and `offsetTop` before the `offsetParent` spec was changed.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window composed-offset-position-0.0.4.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.