Design System Preview
Qiita — lorem ipsum

DESIGN.md lorem ipsum dolor sit amet consectetur adipiscing. YakuHanJPs lorem ipsum dolor, lorem ipsum dolor sit, rgba opacity lorem ipsum dolor sit amet consectetur.

lorem ipsum DESIGN.md lorem

01 / Colors

lorem ipsum dolor

Brand
Qiita Green
#55c500
lorem ipsum / CTA
Green Dark
#468c00
lorem ipsum
Text(opacity lorem)
Text Primary
rgba(0,0,0,0.87)
lorem ipsum dolor
Text Secondary
rgba(0,0,0,0.54)
lorem ipsum dolor
Text Disabled
rgba(0,0,0,0.38)
lorem ipsum
Semantic
Success
#388e3c
lorem / lorem
Danger
#d32f2f
lorem / lorem
Warning
#f57c00
lorem / lorem
Surface & Background
Page Background
#f5f6f6
lorem ipsum
Surface
#ffffff
lorem / lorem ipsum
Border
#e0e0e0
lorem ipsum
Code Block BG
#364549
lorem ipsum dolor sit
Inline Code BG
#f0f0f0
lorem ipsum dolor sit

02 / Typography

lorem ipsum dolor sit

Qiita lorem ipsum dolor, lorem ipsum dolor sit amet consectetur?
20px / 600 / line-height: 1.4 (28px)CTA lorem h2
React Hooks lorem ipsum dolor sit amet consectetur
16px / 400 / line-height: 1.8 (28.8px)lorem ipsum dolor h2
lorem ipsum dolor — Section Heading (h3)
14px / 600 / line-height: 1.8 (25.2px)lorem ipsum dolor
lorem ipsum dolor — line-height: 1.8 lorem ipsum dolor sit amet, lorem ipsum dolor sit amet consectetur adipiscing. YakuHanJPs lorem“lorem”lorem, lorem ipsum dolor sit amet consectetur.
16px / 400 / line-height: 1.8 (28.8px) / letter-spacing: normallorem
lorem ipsum dolor
14px / 600 / line-height: 1.5 (21px)lorem
const app = express();
SFMono-Regular, Consolas... / 14px / 400 / line-height: 1.5lorem

YakuHanJPs lorem ipsum

YakuHanJPs lorem“lorem ipsum dolor sit”lorem. lorem(“”)lorem ipsum(, . )lorem, lorem ipsum dolor sit amet consectetur adipiscing elit sed. font-family lorem ipsum dolor sit amet, lorem ipsum dolor sit amet consectetur, lorem ipsum dolor sit amet consectetur adipiscing elit.

Qiita loremfont-feature-settings: "palt" lorem ipsum, YakuHanJPs lorem ipsum dolor sit amet consectetur. palt lorem ipsum, lorem ipsum dolor sit amet consectetur adipiscing.

YakuHanJPs lorem(Qiita)
“lorem”lorem(lorem)lorem.
lorem ipsum dolor
“lorem”lorem(lorem)lorem.

lorem ipsum dolor sit amet

React Server Components lorem

React Server Components(RSC)lorem, lorem ipsum dolor sit amet consectetur adipiscing elit. lorem ipsum dolor JavaScript lorem ipsum dolor sit, lorem ipsum dolor sit amet consectetur adipiscing.

lorem ipsum dolor

Server Component lorem ipsum dolor sit amet.'use client' lorem ipsum dolor sit amet consectetur, lorem ipsum dolor sit amet Server Component lorem ipsum dolor.

// Server Component(lorem ipsum) async function ArticleList() { const articles = await fetchArticles(); return ( <ul> {articles.map(article => ( <li key={article.id}> <h3>{article.title}</h3> <p>{article.summary}</p> </li> ))} </ul> ); }

Client Component lorem ipsum dolor

lorem ipsum dolor sit amet consectetur,'use client' lorem ipsum Client Component lorem ipsum. lorem ipsum(useState)lorem ipsum dolor sit(onClick)lorem ipsum dolor sit amet consectetur.

'use client'; import { useState } from 'react'; export default function LikeButton({ articleId }: { articleId: string }) { const [liked, setLiked] = useState(false); const [count, setCount] = useState(0); const handleLike = async () => { setLiked(!liked); setCount(prev => liked ? prev - 1 : prev + 1); await fetch(`/api/articles/${articleId}/like`, { method: 'POST', }); }; return ( <button onClick={handleLike}> {liked ? '♥' : '♡'} {count} </button> ); }

lorem ipsum dolor sit

Server Components lorem ipsum dolor, lorem ipsum dolor sit amet:

  • lorem ipsum dolor sit amet JavaScript lorem ipsum dolor sit
  • lorem ipsum dolor sit amet consectetur adipiscing elit sed do
  • lorem ipsum dolor(lorem ipsum dolor sit amet)lorem ipsum dolor sit amet consectetur

04 / Buttons & Tags

lorem / lorem ipsum dolor sit

lorem ipsum
Primary CTA
Tags

05 / Cards

lorem ipsum

TypeScript lorem ipsum dolor

Conditional Types, Mapped Types, Template Literal Types lorem ipsum dolor sit amet consectetur adipiscing.

@engineer_taro / 2026-04-01 / 142 LGTM

Docker Compose lorem ipsum dolor sit

PostgreSQL + Redis + Next.js lorem ipsum dolor sit docker-compose.yml lorem ipsum dolor sit amet.

@devops_hanako / 2026-03-28 / 89 LGTM

GitHub Actions lorem CI/CD lorem ipsum dolor sit

lorem, lint, lorem, lorem ipsum dolor sit amet consectetur adipiscing elit sed.

@infra_jiro / 2026-03-25 / 203 LGTM

06 / Forms

lorem ipsum dolor

lorem ipsum — border: #e0e0e0, radius: 4px
lorem ipsum — border: #55c500 (Qiita Green)
lorem — border: #d32f2f (danger)

07 / Elevation

Depth & Elevation

Level 0: Flat
lorem(lorem)
Elevation 1
lorem ipsum dolor
Elevation 2
lorem ipsum dolor
Focus Ring
#55c500 (Qiita Green)