Code Inspection: Unused selector
Reports a CSS class or an element IDs that appears in selectors but is not used in HTML.
Note that complete inspection results are available only when running it via 'Analyze | Inspect Code...' or 'Analyze | Run Inspection by Name...'. Due to performance reasons, style sheet files are not inspected on the fly.
Suppress an inspection in the editor
Position the caret at the highlighted line and press Alt+Enter or click .
Click the arrow next to the inspection you want to suppress and select the necessary suppress action.