Specify lowercase or uppercase for pseudo-element selectors.
a::before {}
/** ↑
* This is pseudo-element selector */string: "lower"|"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 {}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 {}