在此页

• 句法
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

过时
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

rules 是 弃用 legacy property 的 CSSStyleSheet interface. Functionally identical to the preferred cssRules property, it provides access to a live-updating list of the CSS rules comprising the stylesheet.

注意： As a legacy property, you not use rules and should instead use the preferred cssRules . While rules is unlikely to be removed soon, its availability is not as widespread and using it will result in compatibility problems for your site or app.

句法

var rules = cssStyleSheet.rules;
					

值

A live-updating CSSRuleList containing each of the CSS rules making up the stylesheet. Each entry in the rule list is a CSSRule object describing one rule making up the stylesheet.

规范

规范	状态	注释
CSS Object Model (CSSOM) The definition of 'CSSStyleSheet.rules' in that specification.	工作草案

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
rules 弃用	Chrome Yes	Edge 12	Firefox 68	IE 9	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android 68	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes

图例

完整支持

完整支持

弃用。不要用于新网站。

弃用。不要用于新网站。

另请参阅

• CSS Object Model
• Using dynamic styling information

元数据

• 最后修改： Jun 25, 2019

相关话题

1. CSS Object Model
2. CSSStyleSheet
3. 特性

   1. cssRules
   2. ownerRule
   3. rules
4. 方法

   1. addRule()
   2. deleteRule()
   3. insertRule()
   4. removeRule()
5. 继承：

   1. StyleSheet
6. Related pages for CSSOM

   1. AnimationEvent
   2. CSS
   3. CSSConditionRule
   4. CSSGroupingRule
   5. CSSKeyframeRule
   6. CSSKeyframesRule
   7. CSSMediaRule
   8. CSSNamespaceRule
   9. CSSPageRule
   10. CSSRule
   11. CSSRuleList
   12. CSSStyleDeclaration
   13. CSSStyleRule
   14. CSSSupportsRule
   15. CaretPosition
   16. LinkStyle
   17. MediaQueryList
   18. MediaQueryListListener
   19. Screen
   20. StyleSheet
   21. StyleSheetList
   22. TransitionEvent