CSSSupportsRule

在此页

句法
特性
方法
规范
浏览器兼容性
另请参阅
相关话题

CSSSupportsRule interface describes an object representing a single CSS @supports at-rule . It implements the CSSConditionRule interface, and therefore the CSSRule and CSSGroupingRule interfaces with a type value of 12 ( CSSRule.SUPPORTS_RULE ).

句法

The syntax is described using the WebIDL 格式。

interface CSSSupportsRule : CSSConditionRule {
}

特性

由于 CSSConditionRule and therefore a CSSRule 和 CSSGroupingRule , CSSSupportsRule also implements the properties of these interfaces. It has no specific properties.

方法

由于 CSSConditionRule and therefore a CSSRule 和 CSSGroupingRule , CSSSupportsRule also implements the methods of that interface. It has no specific methods.

规范

规范	状态	注释
CSS Conditional Rules Module Level 3 The definition of 'CSSSupportsRule' in that specification.	候选推荐	初始定义

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`CSSSupportsRule`	Chrome No	Edge ≤18 — 79	Firefox 17 Disabled 17 Disabled From Firefox 17 to 19, methods and properties were defined on `CSSSupportsRule` . From version 20, they were on `CSSConditionRule` . Disabled ). To change preferences in Firefox, visit about:config.	IE No	Opera 12.1	Safari No	WebView Android No	Chrome Android No	Firefox Android 17 Disabled 17 Disabled From Firefox 17 to 19, methods and properties were defined on `CSSSupportsRule` . From version 20, they were on `CSSConditionRule` . Disabled ). To change preferences in Firefox, visit about:config.	Opera Android No	Safari iOS No	Samsung Internet Android No

图例

完整支持
不支持

用户必须明确启用此特征。

另请参阅

@supports

元数据

最后修改： 2019 年 3 月 23 日

在此页

句法

特性

方法

规范

浏览器兼容性

图例

另请参阅

相关话题