CSSStyleRule
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2015.
CSSStyleRule 表示一条 CSS 样式规则。它实现了 CSSRule 接口，类型的值为 1（CSSRule.STYLE_RULE）。
属性
CSSStyleRule.selectorText-
返回这条规则的、文本格式的选择器，例如
"h1,h2"。 CSSStyleRule.style只读-
返回这条规则的
CSSStyleDeclaration对象。 CSSStyleRule.styleMap只读-
返回一个
StylePropertyMap对象，which provides access to the rule's property-value pairs.
规范
| Specification |
|---|
| CSS Object Model (CSSOM) # the-cssstylerule-interface |
浏览器兼容性
BCD tables only load in the browser