height
This property sets the height of an element's content region (excluding padding, border, and margin). It is generally used on positioned block elements. Absolute measurements as well as percentage values are allowed. Percentage values are based on the height of the containing element. The default value auto automatically calculates the height of an element, based on the height of the containing element and the size of the content. Negative values are not allowed.
Examples
p {height: 200px; padding: 10px; border: solid 5px;}
#div1 {height: 50%; width: 50%;}
Browser and CSS Support Notes
CSS1
IE 4, 5, 5.5, 6
Nav 4, 4.5-4.8, 6, 7
Opera 4, 5, 6, 7