Show only right and bottom parts of a shadow

The same way I am pretty sure:

-moz-box-shadow: 10px 10px 5px #222;
-webkit-box-shadow: 10px 10px 5px #222;
box-shadow: 10px 10px 5px #222;

box-shadow:

first argument: bottom offset, second: right offset, third: blur, fourth: color for -moz and -webkit it's the same. So for a bottom right shadow of 4px with 4px blur:

-moz-box-shadow-bottom: 4px 4px 4px black;
-webkit-box-shadow-bottom: 4px 4px 4px black;
box-shadow-bottom: 4px 4px 4px black;