noUnknownProperty (CSS)
Language CSS
Summary
Section titled “Summary”- Rule available since:
v1.8.0 - Diagnostic Category:
lint/correctness/noUnknownProperty - This rule is recommended, meaning it is enabled by default.
- This rule doesn’t have a fix.
- The default severity of this rule is error.
- Sources:
- Same as
property-no-unknown - Inspired from
css/no-invalid-properties
- Same as
How to configure
Section titled “How to configure”{ "linter": { "rules": { "correctness": { "noUnknownProperty": "error" } } }}Description
Section titled “Description”Disallow unrecognized CSS properties.
The known-property list includes standard and browser-specific properties from
known-css-properties.
Custom properties such as --custom-property and vendor-prefixed properties such as
-moz-align-self or -webkit-align-self are allowed.
Examples
Section titled “Examples”Invalid
Section titled “Invalid”a { colr: blue;}code-block.css:2:3 lint/correctness/noUnknownProperty ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Unknown property is not allowed.
1 │ a {
> 2 │ colr: blue;
│ ^^^^
3 │ }
4 │
ℹ See CSS Specifications and browser specific properties for more details.
ℹ To resolve this issue, replace the unknown property with a valid CSS property.
a { my-property: 1;}code-block.css:2:3 lint/correctness/noUnknownProperty ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Unknown property is not allowed.
1 │ a {
> 2 │ my-property: 1;
│ ^^^^^^^^^^^
3 │ }
4 │
ℹ See CSS Specifications and browser specific properties for more details.
ℹ To resolve this issue, replace the unknown property with a valid CSS property.
a { color: green;}a { fill: black;}a { -moz-align-self: center;}Options
Section titled “Options”ignore
Section titled “ignore”Lists additional property names to allow, without regard to letter case. Defaults to an empty list.
{ "linter": { "rules": { "correctness": { "noUnknownProperty": { "level": "on", "options": { "ignore": [ "custom-property" ] } } } } }}a { custom-property: black;}Related links
Section titled “Related links”Sponsored by
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