HTML5 is the latest HyperText Markup Language of the World Wide Web Consortium (W3C), which was first published in 2008. However, it was released and has been used since 2011 when few browsers supported HTML5. Now, most browsers support HTML5 including Chrome, Safari, Firefox, Opera, and IE, allowing users to browse HTML5 pages across different platforms, like PC, Mac, and Smart devices.
The following link is a demo video of SuperGIS 3D Earth Server. The demo shows how the Taiwanese government uses SuperGIS 3D Earth Server to build up a 3D GIS Cloud and allow citizens in Taiwan to observe the underground utilities in a 3D environment.