A box with a shadow
Example 1: Showing box-shadow through transparent background
A box with a shadow
Example 2: Showing box-shadow through transparent background with a theorized negative spread value
A box with a shadow
Example 3: Like Example 1 but with another box with transparent background
A box with a shadow
Example 4: Like Example 2 but with another box with transparent background
A box with a shadow
Example 5: Showing box-shadow through transparent background
A box with a shadow
Example 6: Showing box-shadow through transparent background with a theorized negative spread value
A box with a shadow
Example 7: Like Example 5 but with another box with transparent background
A box with a shadow
Example 8: Like Example 6 but with another box with transparent background

Note: IE9 beta has a bug when you vertically scroll. If any part of the shadow (the origin) passes the top of the viewport, the shadow disappears.

Change background color on <body>