top

This property defines the y (vertical) coordinate for a positioned element, relative to the top of the enclosing object or browser window. Values can be specified as lengths (inches, pixels, and so on), as a percentage of the containing object's dimensions, or as auto, which lets this property function as determined by the browser or as defined by the parent element. Browsers often assume pixels as a default measurement if none is specified.

Examples

#div1 {position: absolute; left: 100px; top: 150px;}
#div2 {position: absolute; left: 50%; top: 30%;}
#div3 {position: absolute; left: auto; top: auto;}

Browser and CSS Support Notes

CSS1
IE 4, 5, 5.5, 6
Nav 4, 4.5-4.8, 6, 7
Opera 6, 7