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Css Fundamentals

Checked
pluginagentmarketplace·vlatest·frontend

Understand and generate basic CSS selectors, properties, and values to style web pages effectively.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add pluginagentmarketplace/custom-plugin-css --skill css-fundamentals -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

pluginagentmarketplace

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned pluginagentmarketplace/custom-plugin-css at cd1e6d83c7.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
cd1e6d83c7
Manifest
skills/css-fundamentals/SKILL.md
Scanned
6 files, 616 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill provides foundational knowledge of CSS (Cascading Style Sheets). It enables AI agents to understand and apply basic styling principles, including selectors, properties, and values. The agent can use this to generate simple CSS code snippets or explain existing styles.

When to use it

  • Generating Basic Styles: When you need a quick snippet of CSS for a simple element like changing text color or font size.
  • Explaining Existing CSS: To understand what a particular CSS rule is doing and how it affects an HTML element.
  • Troubleshooting Styling Issues: When trying to identify why an element isn't displaying as intended.
  • Learning CSS Fundamentals: For users who are new to web development and want a basic understanding of styling.

Key capabilities

  • CSS Selectors (e.g., class, ID, element)
  • Basic CSS Properties (e.g., color, font-size, margin)
  • Understanding of the Cascade in CSS
  • Applying values to CSS properties

Example prompts

  • "Generate CSS to make a paragraph text blue."
  • "Explain what this CSS rule does: p { font-size: 16px; }"
  • "How do I center an element using CSS?"

Tips & gotchas

The skill focuses on fundamentals. It won't handle complex layouts or advanced CSS techniques like animations. Expect basic, functional styling rather than highly optimized or creative designs.