Folding Forms

Assignment: 
To use and understand shape-tweens. The 280px square must be filled with #999999 from the start, and returned to the same color at the finish. You must fold all four corners, make two cut-outs, and fold the corners from the cut-outs (You don't have to fold all the cut-out corners). Each fold must take two seconds and hold for a second. Each cut-out must take a second, then hold a second.