CSS Property - Margin Bottom

Value: <length> | <percentage> | auto
Initial: 0
Applies to: all elements
Inherited: no
Percentage values: refer to width of closest block-level ancestor

The CSS property "margin-bottom" sets the bottom margin of an element:

Example:

h1{
margin-bottom: 3px;
}

A negative value is allowed, but there may be implementation-specific limits.