18.1 İmleçler: cursor niteliği

This property specifies the type of cursor to be displayed for the pointing device. Values have the following meanings:

auto

The UA determines the cursor to display based on the current context.

crosshair

A simple crosshair (e.g., short line segments resembling a "+" sign).

default

The platform-dependent default cursor. Often rendered as an arrow.

pointer

The cursor is a pointer that indicates a link.

move

Indicates something is to be moved.

e-resize, ne-resize, nw-resize, n-resize, se-resize, sw-resize, s-resize, w-resize

Indicate that some edge is to be moved. For example, the 'se-resize' cursor is used when the movement starts from the south-east corner of the box.

text

Indicates text that may be selected. Often rendered as an I-bar.

wait

Indicates that the program is busy and the user should wait. Often rendered as a watch or hourglass.

help

Help is available for the object under the cursor. Often rendered as a question mark or a balloon.

uri

The user agent retrieves the cursor from the resource designated by the URI. If the user agent cannot handle the first cursor of a list of cursors, it should attempt to handle the second, etc. If the user agent cannot handle any user-defined cursor, it must use the generic cursor at the end of the list.

p { cursor : url("mything.cur"), url("second.csr"), text; }

18.2 User preferences for colors

In addition to being able to assign pre-defined color values to text, backgrounds, etc., CSS2 allows authors to specify colors in a manner that integrates them into the user's graphic environment. Style rules that take into account user preferences thus offer the following advantages:

1. They produce pages that fit the user's defined look and feel.

2. They produce pages that may be more accessible as the current user settings may be related to a disability.

The set of values defined for system colors is intended to be exhaustive. For systems that do not have a corresponding value, the specified value should be mapped to the nearest system attribute, or to a default color.

The following lists additional values for color-related CSS attributes and their general meaning. Any color property (e.g., color or background-color) can take one of the following names. Although these are case-insensitive, it is recommended that the mixed capitalization shown below be used, to make the names more legible.

ActiveBorder

Active window border.

ActiveCaption

Active window caption.

AppWorkspace

Background color of multiple document interface.

Background

Desktop background.

ButtonFace

Face color for three-dimensional display elements.

ButtonHighlight

Highlight color for three-dimensional display elements (for edges facing away from the light source).

ButtonShadow

Shadow color for three-dimensional display elements.

ButtonText

Text on push buttons.

CaptionText

Text in caption, size box, and scrollbar arrow box.

GrayText

Grayed (disabled) text. This color is set to #000 if the current display driver does not support a solid gray color.

Highlight

Item(s) selected in a control.

HighlightText

Text of item(s) selected in a control.

InactiveBorder

Inactive window border.

InactiveCaption

Inactive window caption.

InactiveCaptionText

Color of text in an inactive caption.

InfoBackground

Background color for tooltip controls.

InfoText

Text color for tooltip controls.

Menu

Menu background.

MenuText

Text in menus.

Scrollbar

Scroll bar gray area.

ThreeDDarkShadow

Dark shadow for three-dimensional display elements.

ThreeDFace

Face color for three-dimensional display elements.

ThreeDHighlight

Highlight color for three-dimensional display elements.

ThreeDLightShadow

Light color for three-dimensional display elements (for edges facing the light source).

ThreeDShadow

Dark shadow for three-dimensional display elements.

Window

Window background.

WindowFrame

Window frame.

WindowText

Text in windows.

Örnek:

For example, to set the foreground and background colors of a paragraph to the same foreground and background colors of the user's window, write the following:

p { color: WindowText; background-color: Window }

18.3 User preferences for fonts

As for colors, authors may specify fonts in a way that makes use of a user's system resources. Please consult the font property for details.

18.4 Dynamic outlines: the outline property

At times, style sheet authors may want to create outlines around visual objects such as buttons, active form fields, image maps, etc., to make them stand out. CSS2 outlines differ from borders in the following ways:

1. Outlines do not take up space.

2. Outlines may be non-rectangular.

The outline properties control the style of these dynamic outlines.

The outline created with the outline properties is drawn "over" a box, i.e., the outline is always on top, and doesn't influence the position or size of the box, or of any other boxes. Therefore, displaying or suppressing outlines does not cause reflow.

The outline is drawn starting just outside the border edge.

Outlines may be non-rectangular. For example, if the element is broken across several lines, the outline is the minimum outline that encloses all the element's boxes. In contrast to borders, the outline is not open at the line box's end or start, but is always fully connected.

The outline-width property accepts the same values asborder-width.

The outline-style property accepts the same values as border-style, except that 'hidden' is not a legal outline style.

The outline-color accepts all colors, as well as the keyword invert. invert is expected to perform a color inversion on the pixels on the screen. This is a common trick to ensure the focus border is visible, regardless of color background.

The outline property is a shorthand property, and sets all three of outline-style, outline-width, and outline-color.

Not:

Note that the outline is the same on all sides. In contrast to borders, there is no 'outline-top' or 'outline-left' property.

This specification does not define how multiple overlapping outlines are drawn, or how outlines are drawn for boxes that are partially obscured behind other elements.

Not:

Since the focus outline does not affect formatting (i.e., no space is left for it in the box model), it may well overlap other elements on the page.

Örnek:

Here's an example of drawing a thick outline around a BUTTON element:

BUTTON { outline-width : thick }

Scripts may be used to dynamically change the width of the outline, without provoking reflow.

18.5 Magnification

The CSS working group considers that the magnification of a document or portions of a document should not be specified through style sheets. User agents may support such magnification in different ways (e.g., larger images, louder sounds, etc.)

When magnifying a page, UAs should preserve the relationships between positioned elements. For example, a comic strip may be composed of images with overlaid text elements. When magnifying this page, a user agent should keep the text within the comic strip balloon.