CSSStyleDeclaration.parentRule
只读特性返回
CSSRule
that is the parent of this style block
, e.g. a
CSSStyleRule
representing the style for a CSS selector.
var rule = styles.parentRule;
The CSS rule that contains this declaration block or
null
若此
CSSStyleDeclaration
is not attached to a
CSSRule
.
The following JavaScript code gets the parent CSS style rule from a
CSSStyleDeclaration
:
var declaration = document.styleSheets[0].rules[0].style; var rule = declaration.parentRule;
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
parentRule
|
Chrome 1 | Edge 12 | Firefox 1 | IE Yes | Opera Yes | Safari 6 | WebView Android 4.4 | Chrome Android 18 | Firefox Android 4 | Opera Android Yes | Safari iOS Yes | Samsung Internet Android 1.0 |
完整支持
CSSStyleDeclaration
length
parentRule
AnimationEvent
CSS
CSSConditionRule
CSSGroupingRule
CSSKeyframeRule
CSSKeyframesRule
CSSMediaRule
CSSNamespaceRule
CSSPageRule
CSSRule
CSSRuleList
CSSStyleRule
CSSStyleSheet
CSSSupportsRule
CaretPosition
LinkStyle
MediaQueryList
MediaQueryListListener
Screen
StyleSheet
StyleSheetList
TransitionEvent