#custom-property-no-outside-root

Disallow custom properties outside of :root rules.

禁止在 :root 规则之外使用自定义属性。

    a { --foo: 1px; }
/** ↑   ↑
 * These selectors and these types of custom properties */

#Options

#true

The following patterns are considered warnings:

以下模式被认为是个警告：

a { --foo: 1px; }

:root, a { --foo: 1px; }

The following patterns are not considered warnings:

以下模式正常：

:root { --foo: 1px; }