A clamshell electronic device provided. A first hinge having a first centerline along the axis of rotation of the first hinge can be disposed on a base member. A second hinge having a second centerline along the axis of rotation of the second hinge can be disposed on a keyboard member connecting a display member to the keyboard member. The keyboard member can be slideably connected to the base member. The keyboard member can be continuously reversibly slideable from a first position to a second position. The first and second centerlines can be axially aligned when the keyboard member is in the first position. A rigid support member having a first end and a second end can be pivotably connected to the base member at the first end and pivotably connected to the display member via a third hinge at the second end.