Below are video's of the past Deepin OS
Deepin 2014, based on Ubuntu 14.04 LTS, doesn’t use GNOME Shell, Unity or Cinnamon as its desktop environment but a custom shell written in HTML5 and Go. The result is a desktop that is responsive, relatively resource friendly and highly distinctive.
  The desktop interface and apps feature an intuitive and elegant design. Moving around, sharing and searching etc. has become simply a joyful experience.