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List of rules

Grouped first by the following categories and then by the thing they apply to.

Possible errors#

Color#

Font family#

Named grid areas#

Function#

String#

Unit#

Property#

Keyframe declaration#

Declaration block#

Block#

Selector#

Media feature#

At-rule#

Comment#

General / Sheet#

Limit language features#

Alpha-value#

Hue#

Color#

Length#

Font weight#

  • font-weight-notation: Require numeric or named (where possible) font-weight values. Also, when named values are expected, require only valid names.

Function#

Keyframes#

Number#

Time#

Unit#

Shorthand property#

Value#

Custom property#

Property#

Declaration#

Declaration block#

Selector#

Media feature#

Custom media#

At-rule#

Comment#

General / Sheet#

Stylistic issues#

Color#

  • color-hex-case: Specify lowercase or uppercase for hex colors (Autofixable).
  • color-hex-length: Specify short or long notation for hex colors (Autofixable).

Font family#

Function#

Number#

String#

  • string-quotes: Specify single or double quotes around strings (Autofixable).

Unit#

  • unit-case: Specify lowercase or uppercase for units (Autofixable).

Value#

Value list#

Custom property#

Property#

  • property-case: Specify lowercase or uppercase for properties (Autofixable).

Declaration#

Declaration block#

Block#

Selector#

Selector list#

Rule#

Media feature#

Media query list#

At-rule#

Comment#

General / Sheet#