MCP For Claude Marketplace
CSS Specificity Calculator

CSS Specificity Calculator MCP Connector for Claude

B

Calculate, compare, and validate CSS selector specificity weights using W3C standards.

0 tools Official Updated Oct 1, 2026 Official Vinkius Partner
More Details Connect to Claude

This MCP server provides tools to calculate the exact weight breakdown of any CSS selector. Use calculate_specificity to get counts for IDs, classes, and elements. You can also use compare_segments to resolve conflicts between two rules or validate_selector to check for syntax errors. It acts as a bridge connecting AI agents to precise CSS parsing logic.

Available Tools

your_tool_name

cssspecificityweb-devfrontendselector-validation

0 tools expose this connector's capabilities to your AI agent.

See how to talk to your AI agent using CSS Specificity Calculator.

What is the specificity of `#header .menu li`?

The selector `#header .menu li` has 1 ID, 1 class/attribute/pseudo-class, and 2 elements/pseudo-elements.

Is `div > p` a valid selector?

Yes, `div > p` is a syntactically valid CSS selector.

Which selector wins: `.active` or `#main-nav`?

`#main-nav` wins because it contains an ID selector, which has higher precedence than a class selector.

It counts IDs, classes, attributes, pseudo-classes, elements, and pseudo-elements according to W3C standards. Tools available: `your_tool_name`.

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