Adobe Dreamweaver CS3 - Manual (Page 141)

DREAMWEAVER CS3
User Guide
134
• Relative places the content block using the coordinates entered in the Placement boxes relative to block’s position
in the text flow of the document. For example, giving an element a relative position and top and left coordinates
of 20px each will shift the element 20px to the right and 20px down from its normal position in the flow. Elements
can also be positioned relatively, with or without top, left, right, or bottom coordinates, to establish a context for
absolutely-positioned children.
• Fixed places the content using the coordinates entered in the Placement boxes, relative to the top left corner of the
browser. The content will remain fixed in this position as the user scrolls the page.
• Static places the content at its location in the text flow. This is the default position of all positionable HTML
elements.
Visibility Determines the initial display condition of the content. If you do not specify a visibility property, by default
the content inherits the parent tag’s value. The default visibility of the body tag is visible. Select one of the following
visibility options:
• Inherit (default) inherits the visibility property of the content’s parent.
• Visible displays the content, regardless of the parent’s value.
• Hidden hides the content, regardless of the parent’s value.
Z-Index Determines the stacking order of the content. Elements with a higher z-index appear above elements with
a lower z-index (or none at all). Values can be positive or negative. (If your content is absolutely positioned, it’s easier
to change the stacking order using the AP Elements panel.
Overflow Determines what happens if the contents of a container (for example, a DIV or a P) exceed its size. These
properties control the expansion as follows:
• Visible increases the container’s size so that all of its contents are visible. The container expands down and to the
right.
• Hidden maintains the container’s size and clips any content that doesn’t fit. No scroll bars are provided.
• Scroll adds scroll bars to the container regardless of whether the contents exceed the container’s size. Specifically
providing scroll bars avoids confusion caused by the appearance and disappearance of scroll bars in a dynamic
environment. This option is not displayed in the Document window.
• Auto makes scroll bars appear only when the container’s contents exceed its boundaries. This option is not
displayed in the Document window.
Placement Specifies the location and size of the content block. How the browser interprets the location depends on
the setting for Type. Size values are overridden if the content of the content block exceeds the specified size.
The default units for location and size are pixels. You can also specify the following units: pc (picas), pt (points), in
(inches), mm (millimeters), cm (centimeters), (ems), (exs), or % (percentage of the parent’s value). The abbreviations
must follow the value without a space: for example,
3mm .
Clip Defines the part of the content that is visible. If you specify a clipping region, you can access it with a scripting
language such as JavaScript and manipulate the properties to create special effects such as wipes. These wipes can be
set up by using the Change Property behavior.
4 When you are finished setting these options, select another CSS category on the left side of the panel to set
additional style properties, or click OK.
Define CSS style extension properties
Extensions style properties include filters, page break, and pointer options.
September 4, 2007