React - A library for building User Interfaces.

This is a simple and sample application page made up of using React CDNs. JSX, typescript and some otrher stuff is not necessory with react. React can work itself individual. There is only one root element and one render function in a react applcation. Render menthod will replace all the stuff inside the root element before.

CrossOrigin - CrossOrigin enables the application running on a doamin to access the resources available on other domains.