2nd/10_Wiki/Topic_CSS/CSS_Inline_Block.md

---
id: css-inline-block
title: "CSS Inline-block"
category: "Frontend"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["display inline-block", "inline-block", "inline vs block", "horizontal nav menu", "inline-block menu"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.89
created_at: 2026-06-23
updated_at: 2026-06-23
review_reason: ""
merge_history: []
tags: ["css", "web", "frontend", "w3schools", "display", "layout"]
raw_sources: ["https://www.w3schools.com/css/css_inline-block.asp"]
applied_in: []
github_commit: ""
---

# [[CSS Inline-block]]

## 🎯 한 줄 통찰 (One-line insight)
`display: inline-block` makes an element flow on the same line as other inline/inline-block elements while still accepting `width`, `height`, `margin-top`, and `margin-bottom` like a block element — the bridge between inline and block behavior. [S1]

## 🧠 핵심 개념 (Core concepts)
- **Definition** — an element with `display: inline-block` will appear on the same line as other inline or inline-block elements. [S1]
- **Block-like sizing on an inline-flow element** — in addition to flowing inline, you can set `width`, `height`, `margin-top`, and `margin-bottom` for the element (like block elements). [S1]
- **Contrast with `display: inline`** — pure inline elements (such as the default `span`) ignore width/height. [S1]
- **Contrast with `display: block`** — block elements take a full line, breaking the inline flow. [S1]
- **Common use case** — building a horizontal navigation menu from list items. [S1]

## 🧩 추출된 패턴 (Extracted patterns)
- **Three-way display comparison** — placing `inline`, `inline-block`, and `block` spans side by side reveals which respect width/height and which break onto new lines. [S1]
- **Horizontal menu pattern** — strip list styling and set `display: inline-block` on `li` elements to lay menu items out in a row. [S1]

## 📖 세부 내용 (Details)
**What is inline-block?**
An element with `display: inline-block` will appear on the same line as other inline or inline-block elements. In addition, you can set the `width`, `height`, `margin-top`, and `margin-bottom` properties for the element (like block elements). [S1]

**Comparing display values**
The following example shows the different behavior of `display: inline`, `display: inline-block` and `display: block`: [S1]
```css
span.a {
  display: inline; /* the default for span */
  padding: 5px;
  border: 2px solid red;
}

span.b {
  display: inline-block;
  width: 100px;
  height: 35px;
  padding: 5px;
  border: 2px solid red;
}

span.c {
  display: block;
  width: 100px;
  height: 35px;
  padding: 5px;
  border: 2px solid red;
}
```

**Horizontal navigation menu**
A common use of `display: inline-block` is to create a horizontal navigation menu: [S1]
```css
.nav {
  background-color: lightgray;
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.nav li {
  display: inline-block;
  font-size: 18px;
  padding: 15px;
}
```

**Property reference** [S1]

| Property | Description |
|----------|-------------|
| `display` | Specifies the display behavior (the type of rendering box) of an element |

## 🛠️ 적용 사례 (Applied in summary)
The page's own applied examples are the inline/inline-block/block span comparison and the horizontal navigation menu built from `inline-block` list items. No external project/commit applications found in the source.

## 💻 코드 패턴 (Code patterns)
Horizontal menu via inline-block (language: CSS):
```css
.nav li {
  display: inline-block;
  font-size: 18px;
  padding: 15px;
}
```

## ⚖️ 비교 및 선택 기준 (Comparison & decision criteria)
- **`inline` vs `inline-block` vs `block`** — `inline` (default for `span`) ignores width/height; `inline-block` stays on the same line yet accepts width, height, and top/bottom margins; `block` takes a full line. Choose `inline-block` when you need elements in a row that still respect explicit dimensions. [S1]

## ⚖️ 모순 및 업데이트 (Contradictions & updates)
No contradictions found in the source.

## ✅ 검증 상태 및 신뢰도
- **상태:** draft
- **검증 단계:** conceptual (실제 적용 사례 발견 시 applied/validated로 승격 가능)
- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
- **신뢰 점수:** 0.89
- **중복 검사 결과:** 신규 생성 (New discovery)

## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[CSS Tutorial]]
- **관련 개념:** [[CSS Display]], [[CSS Float Examples]], [[CSS Horizontal Align]], [[CSS Box Model]]
- **참조 맥락:** Referenced when laying elements out in a row (menus, badges, chips) without losing block-style sizing.

## 📚 출처 (Sources)
- [S1] W3Schools — CSS Inline-block — https://www.w3schools.com/css/css_inline-block.asp

## 📝 변경 이력 (Change history)
- 2026-06-23: Initial draft synthesized from the W3Schools "CSS Inline-block" page (Astra wiki-curation, P-Reinforce v3.1 format).