org.w3c.dom.css.CSSStyleDeclaration |
The CSSStyleDeclaration
interface represents a single CSS
declaration block. This interface may be used to determine the style
properties currently set in a block or to set style properties explicitly
within the block.
While an implementation may not recognize all CSS properties within a
CSS declaration block, it is expected to provide access to all specified
properties in the style sheet through the CSSStyleDeclaration
interface. Furthermore, implementations that support a specific level of
CSS should correctly handle CSS shorthand properties for that level. For
a further discussion of shorthand properties, see the
CSS2Properties
interface.
This interface is also used to provide a read-only access to the
computed values of an element. See also the ViewCSS
interface. The CSS Object Model doesn't provide an access to the
specified or actual values of the CSS cascade.
See also the Document Object Model (DOM) Level 2 Style Specification.
Public Methods | |||||||||||
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The parsable textual representation of the declaration block
(excluding the surrounding curly braces).
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The number of properties that have been explicitly set in this
declaration block.
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The CSS rule that contains this declaration block or
null
if this CSSStyleDeclaration is not attached to a
CSSRule . | |||||||||||
Used to retrieve the object representation of the value of a CSS
property if it has been explicitly set within this declaration block.
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Used to retrieve the priority of a CSS property (e.g.
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Used to retrieve the value of a CSS property if it has been explicitly
set within this declaration block.
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Used to retrieve the properties that have been explicitly set in this
declaration block.
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Used to remove a CSS property if it has been explicitly set within
this declaration block.
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The parsable textual representation of the declaration block
(excluding the surrounding curly braces).
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Used to set a property value and priority within this declaration
block.
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The parsable textual representation of the declaration block (excluding the surrounding curly braces). Setting this attribute will result in the parsing of the new value and resetting of all the properties in the declaration block including the removal or addition of properties.
The number of properties that have been explicitly set in this declaration block. The range of valid indices is 0 to length-1 inclusive.
The CSS rule that contains this declaration block or null
if this CSSStyleDeclaration
is not attached to a
CSSRule
.
Used to retrieve the object representation of the value of a CSS
property if it has been explicitly set within this declaration block.
This method returns null
if the property is a shorthand
property. Shorthand property values can only be accessed and modified
as strings, using the getPropertyValue
and
setProperty
methods.
propertyName | The name of the CSS property. See the CSS property index. |
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null
if the
property has not been set.
Used to retrieve the priority of a CSS property (e.g. the
"important"
qualifier) if the priority has been
explicitly set in this declaration block.
propertyName | The name of the CSS property. See the CSS property index. |
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"important"
) if the property has been explicitly set
in this declaration block and has a priority specified. The empty
string otherwise.
Used to retrieve the value of a CSS property if it has been explicitly set within this declaration block.
propertyName | The name of the CSS property. See the CSS property index. |
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Used to retrieve the properties that have been explicitly set in this declaration block. The order of the properties retrieved using this method does not have to be the order in which they were set. This method can be used to iterate over all properties in this declaration block.
index | Index of the property name to retrieve. |
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Used to remove a CSS property if it has been explicitly set within this declaration block.
propertyName | The name of the CSS property. See the CSS property index. |
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DOMException | NO_MODIFICATION_ALLOWED_ERR: Raised if this declaration is readonly or the property is readonly. |
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The parsable textual representation of the declaration block (excluding the surrounding curly braces). Setting this attribute will result in the parsing of the new value and resetting of all the properties in the declaration block including the removal or addition of properties.
DOMException | SYNTAX_ERR: Raised if the specified CSS string value has a syntax
error and is unparsable.
NO_MODIFICATION_ALLOWED_ERR: Raised if this declaration is readonly or a property is readonly. |
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Used to set a property value and priority within this declaration
block. setProperty
permits to modify a property or add a
new one in the declaration block. Any call to this method may modify
the order of properties in the item
method.
propertyName | The name of the CSS property. See the CSS property index. |
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value | The new value of the property. |
priority | The new priority of the property (e.g.
"important" ) or the empty string if none. |
DOMException | SYNTAX_ERR: Raised if the specified value has a syntax error and is
unparsable.
NO_MODIFICATION_ALLOWED_ERR: Raised if this declaration is readonly or the property is readonly. |
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