4D Write Pro

• wk left - left align
• wk center - center align (not compatible with HTML, images are not displayed on the web)
• wk right - right align

• Left or right limit of the page relative to the wk anchor horizontal align
• Left or right limit of body in embedded mode (if wk anchor section = wk anchor embedded)

Default value = 0.

• wk behind text - image is anchored, behind the text
• wk in front of text - image is anchored, in front of the text
• wk inline with text - image is inline with text (default for images inserted with WP INSERT PICTURE). Read-only attribute (inline pictures cannot be converted to anchored pictures by programming)

• wk paper box (default) - image is anchored to the edge of the page
• wk header box - image is anchored to the document header. If the header is not visible, image is not displayed.
• wk footer box - image is anchored to the document footer. If the footer is not visible, image is not displayed.

Defines the page index or the type of page an image is anchored to. Possible values:

• wk anchor all - anchors an image to all pages of the section(s) defined by wk anchor section
• wk anchor embedded - anchors an image to the document body in embedded mode (image is only visible in embedded mode)
• wk anchor first page - anchors an image to the first page subsection of the section(s) defined by wk anchor section
• wk anchor left page - anchors an image to the left pages subsection of the section(s) defined by wk anchor section
• wk anchor right page - anchors an image to the right pages subsection of the section(s) defined by wk anchor section
• a number (Longint >= 0) indicating which page to anchor the image to. In this case, wk anchor section = wk anchor all. Section anchoring is ignored if an image is anchored to a single page.

Note: Images in Page mode are not displayed in browsers.

• wk anchor all (default) - anchors an image to all sections in a document (image is only visible in page mode)
• wk anchor embedded - anchors an image to the document body in embedded mode (image is only visible in embedded mode)
• a number (Longint >= 1) indicating the section to anchor the image to. (image is only visible in page mode)

Note: Images in Page mode are not displayed in browsers.

• wk top - top align
• wk center - middle align (not compatible with HTML, images are not displayed in browsers)
• wk bottom - bottom align

• Top, center or bottom limit of the page (see wk anchor origin) or
• Top, center or bottom limit of body in embedded mode (if wk anchor section = wk anchor embedded). 

• wk border box (default): background is painted to outside edge of the border
• wk content box: background is painted within the content box
• wk padding box: background is painted to outside edge of the padding (or to inside edge of the border, if any)
• wk paper box: background is painted to the edge (document or sections only)

Specifies background color of an element. Possible values:

• a CSS color ("#010101" or "#FFFFFF" or "red").
• a 4D color longint value (see OBJECT SET COLOR command)
• a longint array containing an element for each R, G, B component (0-255)

Default for documents is "#FFFFFF" and wk transparent, or "transparent" for paragraphs and images.

• wk auto (default): background image retains its height
• wk contain: scales image to largest size so that it fits entirely in the content area, while preserving its aspect ratio. This option also modifies the value of the other size attributes.
• wk cover: scales background image to be as large as possible so that the background area is entirely covered by the background image, while preserving its aspect ratio. Some parts of the background image may be cropped. This option also modifies the value of the other size attributes.
• Defined size: background image vertical size expressed using a number or string value:
  
  • Real: Size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters) Minimum value: 0pt, maximum value: 10,000pt. A relative value (percentage %) is also supported.

• Value returned (WP GET ATTRIBUTES): If the image was defined through a network URL, the target image is returned if it was already loaded, otherwise an empty image is returned.

Use wk background image url if you want to handle pictures through URLs or local URIs.

• Value returned (WP GET ATTRIBUTES): Network URL or data URI. It may not be equal to the initial URL for an image not referenced with the network URL (only network URLs are kept). For local file URLs, the image stream itself is kept in the document and thus the URL returned is a data URI with the image stream encoded in base64.

Use wk background image if you want to handle background images as picture expressions.

• wk padding box (default): background image starts at padding (or inside border edge) rectangle
• wk border box: background image starts at border (outside edge) rectangle
• wk content box: background image starts at content rectangle
• wk paper box: background image starts at edge (document or sections only)

• wk left (default): background image starts horizontally on left side of the element
• wk center: background image starts horizontally at center of the element
• wk right: background image starts horizontally on right side of the element

• wk top (default): background image starts vertically at top of the element
• wk middle: background image starts vertically at middle of the element
• wk bottom: background image starts vertically at bottom of the element

• wk repeat (default): background image is repeated both vertically and horizontally
• wk no repeat: background image is not repeated
• wk repeat x: background image is repeated only horizontally
• wk repeat y: background image is repeated only vertically

• wk auto (default): background image retains its width
• wk contain: scales image to largest size so that it fits entirely in the content area, while preserving its aspect ratio. This option also modifies the value of the other size attributes.
• wk cover: scales background image to be as large as possible so that the background area is entirely covered by the background image, while preserving its aspect ratio. Some parts of the background image may be cropped. This option also modifies the value of the other size attributes.
• Defined size: background image horizontal size expressed using a real or string value:
  
  • Real: Size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters) Minimum value: 0pt, maximum value: 10,000pt. A relative value (percentage %) is also supported.

Inserts a vertical bar at tab position (value for wk tab stop types)

• a CSS color ("#010101" or "#FFFFFF" or "red").
• a 4D color longint value (see OBJECT SET COLOR command)
• a longint array containing an element for each R, G, B component (0-255)

Default is "#000000" (if string value). If there are multiple colors, WP GET ATTRIBUTES returns an empty string.

• a CSS color ("#010101" or "#FFFFFF" or "red"). Default is "#000000"
• a 4D color longint value (see OBJECT SET COLOR command)
• a longint array containing an element for each R, G, B component (0-255)

• a CSS color ("#010101" or "#FFFFFF" or "red"). Default is "#000000"
• a 4D color longint value (see OBJECT SET COLOR command)
• a longint array containing an element for each R, G, B component (0-255)

• a CSS color ("#010101" or "#FFFFFF" or "red"). Default is "#000000"
• a 4D color longint value (see OBJECT SET COLOR command)
• a longint array containing an element for each R, G, B component (0-255)

• a CSS color ("#010101" or "#FFFFFF" or "red"). Default is "#000000"
• a 4D color longint value (see OBJECT SET COLOR command)
• a longint array containing an element for each R, G, B component (0-255)

• wk none (default): the border does not have rounded angles
• Radius value expressed using a number or a string value:
  
  • Number: Radius in wk layout unit.
  • String: CSS string with value and unit concatenated.(e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)

• wk none (default): no border
• wk hidden: same as wk none, except in border conflict resolution
• wk solid: solid border
• wk dotted: dotted border
• wk dashed: dashed border
• wk double: double border
• wk groove: 3D groove border (actual effect depends on the border color)
• wk ridge: 3D ridged border (actual effect depends on the border color)
• wk inset: 3D inset border (actual effect depends on the border color)
• wk outset: 3D outset border (actual effect depends on the border color)

• wk none (default): no border
• wk hidden: same as wk none, except in border conflict resolution
• wk solid: solid border
• wk dotted: dotted border
• wk dashed: dashed border
• wk double: double border
• wk groove: 3D groove border (actual effect depends on the border color)
• wk ridge: 3D ridged border (actual effect depends on the border color)
• wk inset: 3D inset border (actual effect depends on the border color)
• wk outset: 3D outset border (actual effect depends on the border color)

• wk none (default): no border
• wk hidden: same as wk none, except in border conflict resolution
• wk solid: solid border
• wk dotted: dotted border
• wk dashed: dashed border
• wk double: double border
• wk groove: 3D groove border (actual effect depends on the border color)
• wk ridge: 3D ridged border (actual effect depends on the border color)
• wk inset: 3D inset border (actual effect depends on the border color)
• wk outset: 3D outset border (actual effect depends on the border color)

• wk none (default): no border
• wk hidden: same as wk none, except in border conflict resolution
• wk solid: solid border
• wk dotted: dotted border
• wk dashed: dashed border
• wk double: double border
• wk groove: 3D groove border (actual effect depends on the border color)
• wk ridge: 3D ridged border (actual effect depends on the border color)
• wk inset: 3D inset border (actual effect depends on the border color)
• wk outset: 3D outset border (actual effect depends on the border color)

• wk none (default): no border
• wk hidden: same as wk none, except in border conflict resolution
• wk solid: solid border
• wk dotted: dotted border
• wk dashed: dashed border
• wk double: double border
• wk groove: 3D groove border (actual effect depends on the border color)
• wk ridge: 3D ridged border (actual effect depends on the border color)
• wk inset: 3D inset border (actual effect depends on the border color)
• wk outset: 3D outset border (actual effect depends on the border color)

• Width expressed using a number or a string value:
  
  • Number: Width in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• Default value: 2pt

• Width expressed using a number or a string value:
  
  • Number: Width in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• Default value: 2pt

• Width expressed using a number or a string value:
  
  • Number: Width in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• Default value: 2pt

• Width expressed using a number or a string value:
  
  • Number: Width in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• Default value: 2pt

• Width expressed using a number or a string value:
  
  • Number: Width in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• Default value: 2pt

Centers text or image (value for wk background position h, wk text align, and/or wk tab stop types)

• For a table: read-only attribute
• For a document or a section: read-write attribute. Default value=1 (single column). Maximum value=20

• a CSS color ("#010101" or "#FFFFFF" or "red"). Default is "#000000" (black)
• a 4D color longint value (see OBJECT SET COLOR command)
• a longint array containing an element for each R, G, B component (0-255)

• wk none (default): no rule
• wk hidden: same as wk none, except in rule conflict resolution
• wk solid: solid rule
• wk dotted: dotted rule
• wk dashed: dashed rule
• wk double: double rule
• wk groove: 3D groove rule (actual effect depends on the rule color)
• wk ridge: 3D ridged rule (actual effect depends on the rule color)
• wk inset: 3D inset rule (actual effect depends on the rule color)

• Real: width in wk layout unit.
• String: width value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
  Default value="2.5pt"

• Real: width in wk layout unit
• String: width value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters).
  Default value="12pt"

• Real: width in wk layout unit.
• String: width value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)

Returns last modification date of document (date). This value is read-only and cannot be set.

Note that this value is dynamically updated each time the document contents are edited, but not when the document is opened or saved. 

Formatted HTML code ("pretty print"), easier to debug

Decimal alignment (value for wk tab stop types) or numbers used (value for wk list style type)

• wk left to right (default)
• wk right to left

• Range end offset, or
• Section or subsection text end index in the document body (for subsection, text end index of the parent section).

Value type: Longint

• wk true to set selected characters to bold font style; with the WP GET ATTRIBUTES command, wk true is returned if at least one selected character supports a bold font style.
• wk false (default) to remove the bold font style from selected characters if any; with the WP GET ATTRIBUTES command, wk false is returned if none of the selected characters supports a bold font style.

• wk true to set selected characters to italic or oblique font style; with the WP GET ATTRIBUTES command, wk true is returned if at least one selected character supports an italic or oblique font style.
• wk false (default) to remove the italic or oblique font style from selected characters if any; with the WP GET ATTRIBUTES command, wk false is returned if none of the selected characters supports an italic or oblique font style.

• Real value (default = 12)
• CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points)

• wk auto (default): height is based upon the contents of the element
• Defined size: size expressed using real or string value:
  
  • Real: Size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters) Minimum value: 0pt, maximum value: 10,000pt.

The wk height attribute is overridden by wk min height (if defined).

• Value returned (WP GET ATTRIBUTES): If the image was defined through a network URL, the target image is returned if it was already loaded, otherwise an empty image is returned.

Use wk image url if you want to handle pictures through URLs or local URIs.

• Value returned (WP GET ATTRIBUTES): Network URL or data URI. It may not be equal to the initial URL for an image not referenced with the network URL (only network URLs are kept). For local file URLs, the image stream itself is kept in the document and thus the URL returned is a data URI with the image stream encoded in base64.

Use wk image if you want to handle images as picture expressions.

• wk unit cm (default): centimeters
• wk unit pt: points
• wk unit px: pixels
• wk unit percent (only for wk line height and wk background size h / wk background size v)
• wk unit mm: millimeters
• wk unit inch: inches

Note: When a unit that is not supported by the ruler is selected through this attribute (i.e. wk unit px or wk unit percent), the ruler then uses the cm unit.

Aligns text or tab to the left (value for wk text align or wk tab stop types) or sets starting position of background image (value for wk background position h)

• wk normal (default): use value based upon text size
• Height expressed using a number or a string value:
  
  • Real: height in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters) A relative value (percentage %) is also supported.

• absolute url, for example "http://www.4d.com/"
• relative link, for example "/test/page.html" (the link is relative to the database structure file)
• bookmark link, for example "#Introduction"
• 4D method link, for example "method4D:myAlert?parameter='Hello%World!'"
• empty string = no link

• wk auto (default): sets the starting value to 0.
• an integer value: starting value

• For unordered lists: string used as list item marker (usually a single character string, e.g. "-")
• For ordered lists: string containing the "#" character. "#" is a placeholder for the computed number or letter(s). Default is “#.”, so if current list item number is 15 and list style type is decimal, list item marker string will be "15."

• For unordered lists: string used as list item marker (usually a single character string, e.g. "-")
• For ordered lists: string containing the "#" character. "#" is a placeholder for the computed number or letter(s). Default is “#.”, so if current list item number is 15 and list style type is decimal, list item marker string will be "15."

• wk none (default): list item marker is not defined by an image
• any valid image such as a 4D picture variable or expression

• Value returned (WP GET ATTRIBUTES): If the image was defined through a network URL, the target image is returned if it was already loaded, otherwise an empty image is returned.

Use wk list style image url if you want to handle pictures through URLs or local URIs.

• wk auto (default): height is based upon image size
• Defined size: size expressed using real or string value:
  
  • Real: Size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters) Minimum value: 0pt, maximum value: 10,000pt.

• wk none (default): list item marker is not defined by an image
• a network URL or a data URI, absolute or relative to the structure file

• Value returned (WP GET ATTRIBUTES): Network URL or data URI. It may not be equal to the initial URL for an image not referenced with the network URL (only network URLs are kept). For local file URLs, the image stream itself is kept in the document and thus the URL returned is a data URI with the image stream encoded in base64.

Use wk list style image if you want to handle list item marker images as picture expressions.

• wk disc (default)
• wk circle
• wk square
• wk decimal: 1 2 3
• wk decimal leading zero: 01 02 03
• wk lower latin: a b c
• wk lower roman: i ii iii iv
• wk upper latin: A B C
• wk upper roman: I II III IV
• wk lower greek: alpha, beta, gamma, etc.
• wk armenian
• wk georgian
• wk hebrew
• wk hiragana
• wk katakana
• wk cjk ideographic
• wk hollow square
• wk diamond
• wk club
• wk decimal greek
• wk custom: unordered list with "-" as default list item marker; this is a convenience style used in order to customize a list item marker with wk list string format LTR or wk list string format RTL without modifying standard list item markers
• wk none

• Size expressed using a number or a string value:
  
  • Number: size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• wk none (default): no specific margin

• Size expressed using a number or a string value:
  
  • Number: size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• wk none (default): no specific margin

• Size expressed using a number or a string value:
  
  • Number: size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• wk none (default): no specific margin

• Size expressed using a number or a string value:
  
  • Number: size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• wk none (default): no specific margin

• Size expressed using a number or a string value:
  
  • Number: size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• wk none (default): no specific margin

• wk auto (default): minimum height is based upon the contents of the element
• Defined size: size expressed using real or string value:
  
  • Real: Size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters) Minimum value: 0pt, maximum value: 10,000pt.

The wk min height value overrides the wk height attribute.
 
Note: This attribute is not supported by rows, columns, and cells.

• wk auto (default): minimum width is based upon the contents of the element
• Defined size: size expressed using real or string value:
  
  • Real: Size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters) Minimum value: 0pt, maximum value: 10,000pt.

The wk min width value overrides the wk width attribute.

• existing style sheet name
• wk none (default)

• Size expressed using a number or a string value:
  
  • Number: size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• wk none (default): no specific padding

• Size expressed using a number or a string value:
  
  • Number: size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• wk none (default): no specific padding

• Size expressed using a number or a string value:
  
  • Number: size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• wk none (default): no specific padding

• Size expressed using a number or a string value:
  
  • Number: size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• wk none (default): no specific padding

• Size expressed using a number or a string value:
  
  • Number: size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters)
• wk none (default): no specific padding

• Real: Height in wk layout unit.
• String: CSS string with value and unit concatenated (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters). Supported units: pt,cm,mm, inches.

Aligns text or tab to the right (value for wk text align or wk tab stop types) or sets starting position of background image (value for wk background position h)

• Range start offset, or
• Section or subsection text start index in the document body (for subsection, text start index of the parent section).

Value type: Longint

• wk none (default)
• existing style sheet name

Specifies the leading characters for tabs in paragraph ranges.

Possible values:

• Text array
  A list of leading character for each tab offset, starting from the left margin. The character defined by the last value is repeated for each additional tab entered in the paragraph.
• Text
  A single character is used as the leading character. If more than one character is designated, only the first one will be used.

Synchronized with the wk tab stop offsets and wk tab stop types arrays. If the arrays do not match in size (and are not empty), the last character of the array is used as the default for the tabs. If the arrays are empty, the None character is used.

Note: The last character used is always the default character for tabs.

Specifies tab stops for the paragraph. Possible values:

• Array of tab values: an ordered list of absolute values, starting from the left margin. The last value is the default tab offset value (repeated for each additional tab character entered in the paragraph) and NOT an absolute tab position. If the tab offset is greater than the paragraph width, the text goes on the next line and starts from the first tab value. If a value in the array is smaller than the previous value, it is ignored (except for the last value in the array, which is a default offset).
• Scalar value (default is 35.45pt): default offset for the whole paragraph. The WP GET ATTRIBUTES command returns the last offset (which is the default relative offset for offsets beyond the last absolute offset).

Note: You cannot use arrays and scalars in the same call for different attributes.

Values are expressed using CSS strings (default) or Real values in wk layout unit. Maximum value is 10,000pt.

Synchronized with the wk tab stop leadings and wk tab stop types arrays.

Specifies tab stop type for the paragraph. Possible values:

• array of tab stop type values (if tab stops have been defined through an array). 
• wk left (default): text extends to the right from the tab stop
• wk right: text extends to the left from the tab stop until the tab's space is filled
• wk center: text is centered at the tab stop
• wk decimal: text before the decimal point extends to the left, and text after the decimal point extends to the right
• wk bar: a vertical line at the specified position

Synchronized with the wk tab stop offsets and wk tab stop leadings arrays.

• wk left (default)
• wk right
• wk center

• wk left (default)
• wk right
• wk justify
• wk center

• a CSS color ("#010101" or "#FFFFFF" or "red"). Default is "#000000" if string.
• a 4D color longint value (see OBJECT SET COLOR command)
• a longint array containing an element for each R, G, B component (0-255)

• Real: Size in wk layout unit. Default is 0.
• String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters) Minimum value: 0pt, maximum value: 10,000pt.

• a CSS color ("#010101" or "#FFFFFF" or "red").
• a 4D color longint value (see OBJECT SET COLOR command)
• a longint array containing an element for each R, G, B component (0-255)

Default is "currentColor" if string, or wk default if longint.

• wk none (default): no linethrough effect
• wk solid: draw a solid line on the selected text
• wk dotted: draw a dotted line on the selected text
• wk dashed: draw a dashed line on the selected text
• wk double: draw a double line on the selected text
• wk semi transparent: dimmed line on the selected text. Can be combined with another line style.
• wk word: draw a line on words only (exclude blank spaces). Can be combined with another line style.

• a CSS color ("#010101" or "#FFFFFF" or "red").
• a 4D color longint value (see OBJECT SET COLOR command)
• a longint array containing an element for each R, G, B component (0-255)
• wk transparent (default)

• Size expressed in points. Default value: 1pt

• wk capitalize: first letters are set to uppercase
• wk lowercase: letters are set to lowercase
• wk uppercase: letters are set to uppercase
• wk small uppercase: letters are set to small uppercase
• wk none (default): no transformation

• a CSS color ("#010101" or "#FFFFFF" or "red").
• a 4D color longint value (see OBJECT SET COLOR command)
• a longint array containing an element for each R, G, B component (0-255)

Default is "currentColor" if string, or wk default if longint.

• wk none (default): no underline
• wk solid: draw a solid underline
• wk dotted: draw a dotted underline
• wk dashed: draw a dashed underline
• wk double: draw a double underline
• wk semi transparent: dimmed underline. Can be combined with another line style.
• wk word: draw an underline for words only (exclude blank spaces). Can be combined with another line style.

(Read-only attribute) Type of 4D Write Pro object. Possible values:

• wk type default: Range or section with not defined type
• wk type paragraph: Paragraph type range
• wk type image: Image (anchored and inline)
• wk type container: Header or footer, for instance
• wk type table: Table reference

For ranges of cells, columns and rows only:

• wk type table row: Table row reference
• wk type table cell: Table cell reference
• wk type table column: Table column reference

For subsections only:

• wk first page: First page subsection
• wk right page: Right page subsection
• wk left page: Left page subsection

• wk baseline: aligns baseline of element with baseline of parent element
• wk top: aligns top of element with top of tallest element on the line
• wk bottom: aligns bottom of element with lowest element on the line
• wk middle: element is placed in middle of parent element
• wk superscript: aligns element as if it were superscript
• wk subscript: aligns element as if it were subscript

• wk auto (default): width is based upon the contents of the element
• Defined size: size expressed using a real or string value:
  
  • Real: Size in wk layout unit.
  • String: CSS string with value and unit concatenated. (e.g.: "12pt" for 12 points, or "1.5cm" for 1.5 centimeters) Minimum value: 0pt, maximum value: 10,000pt.

The wk width attribute is overridden by wk min width if defined.