top : auto | length | percentage
Compatibility:  IE4+  N4+
Version: Level 2
Inherited: No
The top property sets the physical distance of how far the top content edge of an element is below the top content edge of the containing block.
A containing block is simply an element that contains one or more related elements.
There are three other properties that allow you to set the distance for the bottom, left, and right content edges. All four properties are used in conjunction with the position property. Note that if the position property is set to the static value, setting the top property has no effect.
The auto value dictates that the browser sets the distance between the top content edges.
The length value sets the distance between the top content edges and can be in any of the following seven units. Use the abbreviation.
Length Abbrev.
centimeters cm
ems em
inches in
millimeters mm
picas pc
pixels px
points pt

The percentage value sets the distance between the top content edges as a percentage of the overall height of the parent block. It is a positive integer number. The percent sign is mandatory.
Code: {
position: absolute;
bottom: 1in;
left: 1in;
right: 1in;
top: 1in;

Click to view example in separate window

Copyright 1999-2001 by Infinite Software Solutions, Inc. All rights reserved.
Trademark Information