CSSStyleRule
Baseline Widely available *
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
* Some parts of this feature may have varying levels of support.
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 |