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开发文档 当前版本 v1.8

noUnknownSelectorPseudoElement（自 v1.8.0 起）

诊断类别：lint/nursery/noUnknownSelectorPseudoElement

¥Diagnostic Category: lint/nursery/noUnknownSelectorPseudoElement

来源：

¥Sources:

禁止未知的伪元素选择器。

¥Disallow unknown pseudo-element selectors.

有关已知 CSS 伪元素的详细信息，请参阅 MDN web 文档。

¥For details on known CSS pseudo-elements, see the MDN web docs.

此规则忽略供应商前缀的伪元素选择器。

¥This rule ignores vendor-prefixed pseudo-element selectors.

示例

Section titled 示例

¥Examples

无效

Section titled 无效

¥Invalid

a::pseudo {}
code-block.css:1:4 lint/nursery/noUnknownSelectorPseudoElement ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Unexpected unknown pseudo-elements: pseudo
  
  > 1 │ a::pseudo {}
      │    ^^^^^^
    2 │ 
  
  ℹ See MDN web docs for more details.
  
  ℹ Use a known pseudo-elements instead, such as:
  
  - after
  - backdrop
  - before
  - etc.
  

a::PSEUDO {}
code-block.css:1:4 lint/nursery/noUnknownSelectorPseudoElement ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Unexpected unknown pseudo-elements: PSEUDO
  
  > 1 │ a::PSEUDO {}
      │    ^^^^^^
    2 │ 
  
  ℹ See MDN web docs for more details.
  
  ℹ Use a known pseudo-elements instead, such as:
  
  - after
  - backdrop
  - before
  - etc.
  

a::element {}
code-block.css:1:4 lint/nursery/noUnknownSelectorPseudoElement ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Unexpected unknown pseudo-elements: element
  
  > 1 │ a::element {}
      │    ^^^^^^^
    2 │ 
  
  ℹ See MDN web docs for more details.
  
  ℹ Use a known pseudo-elements instead, such as:
  
  - after
  - backdrop
  - before
  - etc.

有效

Section titled 有效

¥Valid

a:before {}
a::before {}
::selection {}
input::-moz-placeholder {}

相关链接

Section titled 相关链接

¥Related links