Proper way to work in front of a computer

Proper way to work in front of a computer:

1. The angle of the hips, knees, and elbows is approximately 90 degrees.
2. The eyes gaze straight ahead, or slightly down.
3. The seat is the correct depth so that the back is supported with the natural in and out curves allowed.
4. The feet are flat on the floor ( or in this case the small footrest.), removing the strain on the low back.
5. The wrists are supported with a pad.
6. The mouse is neither too close nor too far away so that the shoulders are not strained.