Margin Top

The margin-top property sets the top margin (space) of an element. The space is created outside the element's border.

Value Description
(numeric)e.g. '15' would set the top margin for an element to 15 pixels (Microthemer automatically adds the 'px' unit if a unit isn't specified). Other commonly used units include 'em' and '%'. So you could enter '5%' in the Top Margin field.

Themeover CSS Reference