top - CSS 3

For absolutely positioned elements, the top property sets the top edge of an element to a unit above/below the top edge of its 
nearest positioned ancestor. Note: If an absolute positioned 
element has no positioned ancestors, it uses the document body, and moves along 
with page scrolling. Note: A "positioned" element is one whose 
position is anything except static.For relatively positioned elements, the top property sets the top edge of an element to a unit above/below its normal position. Note: If "position:static", the top property has no effect.

Syntax

top: auto|length|initial|inherit;

Example

div.absolute {    position: absolute;    
	top: 80px;    width: 200px;    height: 
	100px;    border: 3px solid #8AC007;}

Output / Return Value

Limitations

Alternatives / See Also

Reference