Skip to content
Get packs

CSS Layout Expert

Guides the agent to write modern, responsive CSS with flexbox, grid, animations and theming.

Source Download skill
Repository
RightNow-AI/openfang
Stars
18,243
Licence
Apache-2.0
Files
1 file

What it does

When installed, the agent answers CSS and page-layout questions with modern best practices in mind, such as choosing flexbox for single-direction layouts and grid for two-directional ones, using container queries, fluid typography with clamp(), and design tokens stored as CSS custom properties. It also steers away from common mistakes like fixed pixel widths, arbitrary z-index values, and needless !important overrides. It is a set of written guidelines rather than a tool, so it changes how the agent writes CSS but does not run anything itself.

Great for

  • Front-end developers who want the agent to write responsive CSS layouts
  • Designers or students learning modern CSS techniques like grid, flexbox and animations
  • Teams wanting consistent theming through custom properties and dark mode

Skip it if

  • Projects that depend on legacy browser support, since the guidance assumes current CSS features like container queries and :has() (check browser support first)
  • Complex design-system audits or pixel-perfect visual QA, which need a tool that can render and inspect the page

Try asking

  • “Make this navigation bar responsive using flexbox and wrap cards onto new rows on small screens”
  • “Build a three-row page layout with a header, sidebar and footer using CSS Grid”
  • “Add a dark mode toggle using CSS custom properties for the color tokens”
  • “Create a smooth fade-in animation for these buttons using transform and opacity”
Step-by-step guide: how to use CSS Layout ExpertInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 1 original files, the Apache-2.0 licence and an attribution note.

    css-expert.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip css-expert.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip css-expert.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Give the agent your existing CSS or HTML so it can match your naming conventions and structure rather than writing from scratch.
  • State your browser support requirements up front, because the advice favours modern features that older browsers may not support.
  • Ask for the reasoning behind a layout choice to learn when to use grid versus flexbox.

What's inside

  • SKILL.md

Redistributed unmodified from RightNow-AI/openfang under the Apache-2.0 licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.