Code Inspections in CSS

In CSS, ReSharper 2023.1 provides 22 proprietary code inspections, any of which you can disable or change its severity level.
These code inspections help you detect code issues in design time in all open files, and additionally they allow you to find code issues in specific scope.

Configurable CSS inspections are listed below, grouped by their categories.

Common Practices and Code Improvements (1 inspection)

This category groups inspections that hunt for medium severity issues that mainly affect code readability.

Inspection ID EditorConfig property	Default severity
Two colons preferred `DoubleColonsPreferred` `resharper_double_colons_preferred_highlighting`	Suggestion

Inspection

EditorConfig property

Default severity

Two colons preferred

DoubleColonsPreferred

resharper_double_colons_preferred_highlighting

Suggestion

Potential Code Quality Issues (17 inspections)

This category includes inspections that detect critical issues (code smells), mostly with Error or Warning level. This category also includes inspections that ensure localization assistance.

Inspection ID EditorConfig property	Default severity
Cannot resolve file system path `PathNotResolved` `resharper_path_not_resolved_highlighting`	Error
CSS feature is not supported by specific browsers `CssCaniuseUnsupportedFeature` `resharper_css_caniuse_unsupported_feature_highlighting`	Hint
CSS feature requires vendor prefix for specific browsers `CssCaniuseFeatureRequiresPrefix` `resharper_css_caniuse_feature_requires_prefix_highlighting`	Hint
CSS symbol / syntax is not compatible with specific browsers `CssBrowserCompatibility` `resharper_css_browser_compatibility_highlighting`	Warning
CSS symbol is obsolete `CssObsolete` `resharper_css_obsolete_highlighting`	Hint
Invalid hexadecimal value of color `HexColorValueWithAlpha` `resharper_hex_color_value_with_alpha_highlighting`	Error
Invalid value `InvalidValue` `resharper_invalid_value_highlighting`	Error
Property does not override vendor-prefixed property `CssPropertyDoesNotOverrideVendorProperty` `resharper_css_property_does_not_override_vendor_property_highlighting`	Warning
Requires fallback color `RequiresFallbackColor` `resharper_requires_fallback_color_highlighting`	Warning
Syntax is not allowed in specified CSS version `SyntaxIsNotAllowed` `resharper_syntax_is_not_allowed_highlighting`	Warning
Two colons expected `DoubleColonsExpected` `resharper_double_colons_expected_highlighting`	Error
Unknown CSS class `UnknownCssClass` `resharper_unknown_css_class_highlighting`	Warning
Unknown CSS symbol `CssNotResolved` `resharper_css_not_resolved_highlighting`	Error
Unknown custom property `UnknownCssVariable` `resharper_unknown_css_variable_highlighting`	Warning
Unknown vendor-specific extension `UnknownCssVendorExtension` `resharper_unknown_css_vendor_extension_highlighting`	Hint
Value is unexpected `UnexpectedValue` `resharper_unexpected_value_highlighting`	Error
Value should have units `ValueShouldHaveUnits` `resharper_value_should_have_units_highlighting`	Error

Redundancies in Code (3 inspections)

Code inspections in this category look for redundancies and dead code, which affect code readability and style, and could be safely removed. Some code redundancies cannot be fixed automatically, and quick-fixes for them are performed in the interactive mode, requiring the user input. But the majority of the redundancies can be fixed without user interaction, using either fix in scope or code cleanup.

Inspection ID EditorConfig property	Default severity
Redundant code `Redundant` `resharper_redundant_highlighting`	Warning
Redundant CSS hack `RedundantCssHack` `resharper_redundant_css_hack_highlighting`	Warning
Redundant measure unit `RedundantUnits` `resharper_redundant_units_highlighting`	Warning

Inspection

EditorConfig property

Default severity

Redundant code

Redundant

resharper_redundant_highlighting

Warning

Redundant CSS hack

RedundantCssHack

resharper_redundant_css_hack_highlighting

Warning

Redundant measure unit