Keyboard device

A keyboard device, comprising:

• a base plate;
• a plurality of key structures disposed over the base plate, each of the key structures having a keycap;
• a floating frame disposed over and separated from the base plate, the floating frame having a plurality of openings, and the key structures being disposed in the openings, respectively;
• and a cover layer covering the keycaps of the key structures and the floating frame, and in direct contact with an upper surface of the keycap of each of the key structures and an upper surface of the floating frame, wherein when the keycap of one of the key structures and the cover layer thereover are pressed down to bottom, the floating frame surrounding the one of the key structures is pulled by the cover layer and shifted, wherein when the keycap of the one of the key structures is pressed to the bottom, the floating frame surrounding the one of the key structures is not in contact with the base plate.