css-cascade

Compare CSS files by applying cascade rules and generating detailed diff reports.

Updated Jun 9, 2026
One-click install
npx skills add https://github.com/svjunic/css-cascade --skill css-cascade
Or copy as Structured Prompt for Agent
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Skill: css-cascade
Source: https://github.com/svjunic/css-cascade/tree/main/README
Command: npx skills add https://github.com/svjunic/css-cascade --skill css-cascade

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires css-cascade, and includes scripts (resource) components.

What problem does it solve?

This Skill helps users compare CSS changes in a detailed manner, applying cascade rules to determine final effective values and identify potential issues.

Core Features & Use Cases

  • CSS Change Comparison: Compare CSS files using cascade rules to see the final effective values after applying rules like specificity and !important.
  • Detailed Diff Reports: Generate comprehensive reports that highlight added, removed, and changed properties.
  • Use Case: After making CSS changes, use this Skill to quickly verify that the intended changes were applied correctly and no unintended side effects occurred.

Quick Start

To compare CSS files 'old.css' and 'new.css', use the command 'css-cascade old.css new.css'.

Frequently Asked Questions about css-cascade

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I compare CSS files and account for cascade specificity?

To compare CSS files with cascade specificity, use the css-cascade CLI tool. It evaluates selectors, properties, and values, generating detailed diff reports that show final effective values after applying rules like !important.

What is the best way to review CSS changes for unintended side effects?

The best way to review CSS changes is by generating a detailed diff report. This approach highlights added, removed, and changed properties, allowing you to verify that only intended modifications were applied across your stylesheets.

Can I use a CSS diff tool for code review in web development?

Yes, you can use a CSS diff tool for code review in web development. It compares stylesheet changes by applying cascade rules, helping you identify potential issues and ensure quality assurance during your development workflow.

Do I need a specific CLI tool to generate CSS cascade diff reports?

Yes, you need the css-cascade CLI tool installed to generate diff reports. Once installed, you can compare stylesheets by running the command with your old and new CSS file paths to see the effective value changes.

How does comparing CSS with cascade rules differ from a standard text diff?

Comparing CSS with cascade rules goes beyond standard text diffing by calculating the final effective values. It resolves conflicts using specificity and !important rules, showing the actual visual impact rather than just raw text changes.