What's the shorthand equivalent of these longhand declarations?

margin: 10px 20px 10px 20px;margin: 20px 10px;

Bravo! The margin property uses a clockwise sequence, starting at the top. If we set less than four values, the top and right values will be reused.

Oh noes! The margin property uses a clockwise sequence, starting at the top. If we set less than four values, the top and right values will be reused.