Let's try this again, but with
margin this time.
Instead of specifying an element's
margin-left properties, you can specify them all in one line, like this:
margin: 10px 20px 10px 20px;
These four values work like a clock: top, right, bottom, left, and will produce the exact same result as using the side-specific margin instructions.
Clockwise Notation to give the element with the
green-box class a margin of
40px on its top and left side, but only
20px on its bottom and right side.