Question 1

What is unused CSS and why should I remove it?

Accepted Answer

Unused CSS refers to style rules that are defined in your CSS files but are not applied to any elements on your web pages. Removing unused CSS reduces file size, improves page load times, enhances performance, and saves bandwidth for mobile users.

Question 2

Does this work with Tailwind CSS?

Accepted Answer

Yes! This tool works great with Tailwind CSS. Since Tailwind v3+, JIT mode is enabled by default and automatically purges unused styles. However, you can use this tool to:• Verify your Tailwind purge configuration• Check custom CSS outside of Tailwind• Debug missing classes in production builds• Analyze CSS from external libraries

Question 3

Can I analyze multiple pages at once?

Accepted Answer

Currently, the tool analyzes one HTML snippet at a time. For multi-page analysis, you can:• Combine your HTML pages into one input• Run separate analyses and compare results• Use build tools like PurgeCSS or PostCSS for automated multi-page purging in production

Question 4

Is my CSS and HTML data stored or sent to a server?

Accepted Answer

No! All analysis happens 100% in your browser using client-side JavaScript. Your CSS and HTML never leave your device, ensuring complete privacy and security. This is a 'use client'  component with no server-side processing.

Question 5

What CSS features are supported?

Accepted Answer

The analyzer supports:• Class selectors (.class-name)• ID selectors (#id-name)• Tag selectors (div, p, h1)• Pseudo-classes (:hover, :focus)• Attribute selectors ([type='text'])• Tailwind utility classesLimitations: Complex selectors with combinators (>, +, ~) and deeply nested rules may need manual review.

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