notes/node_modules/stylelint/lib/rules/selector-pseudo-element-case/README.md

selector-pseudo-element-case

Specify lowercase or uppercase for pseudo-element selectors.

    a::before {}
/**    ↑
 * This is pseudo-element selector */

Options

string: "lower"|"upper"

"lower"

The following patterns are considered warnings:

a:Before {}

a:bEfOrE {}

a:BEFORE {}

a::Before {}

a::bEfOrE {}

a::BEFORE {}

input::-MOZ-PLACEHOLDER {}

The following patterns are not considered warnings:

a:before {}

a::before {}

input::-moz-placeholder {}

"upper"

The following patterns are considered warnings:

a:Before {}

a:bEfOrE {}

a:BEFORE {}

a::Before {}

a::bEfOrE {}

a::before {}

input::-moz-placeholder {}

The following patterns are not considered warnings:

a:BEFORE {}

a::BEFORE {}

input::-MOZ-PLACEHOLDER {}