Dynamic HTML: The Definitive Reference

Positioning Attributes

The CSS-Positioning recommendation specifies several properties that can be set as style sheet rule attributes. These attributes are used only when the position attribute is included in the rule; otherwise they have no meaning. Implementation of all the CSS-P attributes varies from browser to browser. Table 4.1 provides a summary of all the attributes defined in the W3C recommendation as well as how those attributes are implemented in the browsers. A separate column shows the Navigator <LAYER> tag attribute that corresponds to the CSS-P attribute.

Table 4-1. Summary of Positioning Attributes

CSS Attribute	Description	CSS-P	IE	NN	Layer Attribute
position	Defines a style rule as being for a positionable element	1	4	4	-
left	The offset distance from the left edge of the element’s positioning context to the left edge of the element’s box	1	4	4	LEFT
top	The offset distance from the top edge of the element’s positioning context to the top edge of the element’s box	1	4	4	TOP
width	The width of an absolute-positioned element’s content	1	4	4	WIDTH
height	The height of an absolute-positioned element’s content	1	4	4	HEIGHT
clip	The shape and dimension of the viewable area of an absolute-positioned element	1	4	4	CLIP
overflow	How to handle content that exceeds its height/width settings	1	4	4	-
visibility	Whether a positionable element is visible or not	1	4	4	VISIBILITY
z-index	The stacking ...