It had been left raised up to 4ft (1.2m) along a 0.6-mile (1km) section, about 300ft (91m) below the surface.

BBC: Shell claims progress on North Sea oil leak

When a section is highlighted, a preview of its contents float beneath the surface of the interface, scurrying to the top when their parent option is selected.

ENGADGET: Steam Big Picture beta hands-on HD