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Hover over any HTML element to inspect its computed CSS in a floating panel. Inspect any page's CSS in real time. Hover an element to see its computed styles in a floating panel — freeze it for closer study, then copy values or a full CSS snippet to the clipboard. Style Detective is a modern successor to the classic CSS Viewer extension, rebuilt for today's web. WHAT YOU CAN DO • Hover any element to inspect computed styles • Freeze the panel in place for detailed review • Copy an element's CSS definition, individual values, or class list • Check WCAG contrast between color and background-color • Works with iframes • Supports dark mode and adjustable panel font size • Customizable layout: Show/hide CSS classes and box model in settings to preserve space on smaller displays HOW TO USE 1. Click the toolbar icon or press Alt+Shift+S (Option+Shift+S on Mac) 2. Hover elements to inspect them 3. Press F to freeze/unfreeze, C to copy CSS, Shift+C to copy classes, J to copy JSON 4. Press Esc to close Please post bugs and feature requests on GitHub Issues: https://github.com/dmhendricks/style-detective/issues
Aug 3, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.