---
id: w3css-round
title: "W3CSS Round"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["w3-round", "w3-circle", "W3.CSS 둥근 모서리"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.88
created_at: 2026-07-04
updated_at: 2026-07-04
review_reason: ""
merge_history: []
tags: ["w3css", "css-framework", "w3schools", "round", "circle"]
raw_sources: ["https://www.w3schools.com/w3css/w3css_round.asp"]
applied_in: []
github_commit: ""
---

# [[W3CSS Round]]

## 🎯 한 줄 통찰 (One-line insight)
`w3-round` and `w3-round-medium` are silent aliases — both apply the exact same 4px border-radius — following the same "plain name = medium tier" pattern already seen in `w3-card`/`w3-card-2`, meaning W3.CSS consistently treats the unqualified class name as shorthand for its own "medium" size variant across multiple class families. [S1]

## 🧠 핵심 개념 (Core concepts)
- **Five rounding tiers** — `w3-round-small` (2px), `w3-round`/`w3-round-medium` (4px, aliases), `w3-round-large` (8px), `w3-round-xlarge` (16px), `w3-round-xxlarge` (32px). [S1]
- **`w3-circle`** — renders content inside a perfect circle; works on both images and text containers. [S1]
- **Nested circles** — a circle can contain another circle (e.g. a smaller red circle centered inside a larger green one) by stacking `w3-circle` on nested elements with different padding/sizing. [S1]

## 📖 세부 내용 (Details)
- Basic rounding: `<div class="w3-round w3-teal">w3-round</div>`. [S1]
- Circular image: `<img class="w3-circle" src="img_car.jpg" alt="Car">`. [S1]
- Text inside a circle: `<div class="w3-padding-32 w3-red w3-circle w3-center"><h1>The w3-circle Class</h1></div>`. [S1]
- Nested circle-in-circle: `<div class="w3-padding-32 w3-green w3-circle"><div class="w3-padding-32 w3-red w3-circle w3-center" style="width:55%"><p class="w3-xlarge">Hello<br>W3.CSS!</p></div></div>`. [S1]

## ⚖️ 모순 및 업데이트 (Contradictions & updates)
- **plain 이름 = medium 별칭 패턴**: w3-round와 w3-round-medium이 완전히 동일한 4px 값을 가진다는 점이 카드 클래스(w3-card=w3-card-2)와 동일한 명명 관습임을 보여준다. [S1]

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — 원 안에 원을 중첩시켜 텍스트를 배치하는 것이 시각적 강조 디자인의 대표 사례다. [S1]

## 💻 코드 패턴 (Code patterns)
Nested circles with centered text (HTML):
```html
<div class="w3-padding-32 w3-green w3-circle">
  <div class="w3-padding-32 w3-red w3-circle w3-center" style="width:55%">
    <p class="w3-xlarge">Hello<br>W3.CSS!</p>
  </div>
</div>
```

## ✅ 검증 상태 및 신뢰도
- **상태:** draft
- **검증 단계:** conceptual
- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
- **신뢰 점수:** 0.88
- **중복 검사 결과:** 신규 생성 (New discovery)

## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[W3.CSS Tutorial]]
- **관련 개념:** [[W3CSS Text]], [[W3CSS Borders]], [[W3CSS Padding]]
- **참조 맥락:** 타이포그래피 섹션의 마지막 — 여백(Padding) 챕터로 이어짐.

## 📚 출처 (Sources)
- [S1] W3Schools — W3.CSS Round Classes — https://www.w3schools.com/w3css/w3css_round.asp

## 📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "W3.CSS Round Classes" page (Astra wiki-curation, P-Reinforce v3.1 format).