Make sure the unit of measure is set to Pixels.
Change the Width to 220 pixels and the Height to 220 pixels.
Click the center square in the anchor area to ensure the canvas is extended evenly on all
sides.
Click OK.
Choose Layer > Layer Style > Drop Shadow.
In the Layer Style dialog box, apply the following settings:
Opacity: 27 %
Angle: 120 °
Distance: 9 px
Spread: 19 %
Size: 18 px