---
id: html-headings
title: "HTML Headings"
category: "Frontend"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["heading tags", "h1", "h2", "h6", "headings hierarchy", "HTML titles"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.90
created_at: 2026-06-23
updated_at: 2026-06-23
review_reason: ""
merge_history: []
tags: ["html", "web", "frontend", "w3schools", "headings", "semantics"]
raw_sources: ["https://www.w3schools.com/html/html_headings.asp"]
applied_in: []
github_commit: ""
---

# [[HTML Headings]]

## 🎯 한 줄 통찰 (One-line insight)
HTML headings `<h1>`–`<h6>` express the importance and structure of content (not merely its size), with `<h1>` most important and `<h6>` least. [S1]

## 🧠 핵심 개념 (Core concepts)
- **Six heading levels** — `<h1>` through `<h6>`. [S1]
- **Importance, not size** — `<h1>` defines the most important heading; `<h6>` the least important. [S1]
- **Browsers add margins** — browsers automatically add some white space (a margin) before and after a heading. [S1]
- **Headings are for structure** — search engines use headings to index the structure and content of web pages; users skim them to grasp a page. [S1]
- **Size is styled with CSS** — use the `style` attribute with `font-size` to change a heading's rendered size. [S1]

## 🧩 추출된 패턴 (Extracted patterns)
- **One `<h1>` per page** — use `<h1>` for the main title (or logo). [S1]
- **Logical hierarchy** — `<h1>` for page title → `<h2>` for section titles → `<h3>` for subsections, in order. [S1]
- **Don't misuse headings for visuals** — do not use headings just to make text big or bold; use CSS for that. [S1]
- **Resize via inline style** — `<h1 style="font-size:60px;">…</h1>`. [S1]

## 📖 세부 내용 (Details)
**HTML Headings**
HTML headings are titles or subtitles that you want to display on a webpage. They are defined with the `<h1>` to `<h6>` tags. `<h1>` defines the most important heading; `<h6>` defines the least important heading: [S1]
```html
<h1>Heading 1</h1>
<h2>Heading 2</h2>
<h3>Heading 3</h3>
<h4>Heading 4</h4>
<h5>Heading 5</h5>
<h6>Heading 6</h6>
```

> **Note:** Browsers automatically add some white space (a margin) before and after a heading. [S1]

**Headings Are Important**
Headings are important. Search engines use the headings to index the structure and content of your web pages. Users often skim a page by its headings; it is important to use headings to show the document structure. `<h1>` headings should be used for main headings, followed by `<h2>` headings, then the less important `<h3>`, and so on. [S1]

> **Note:** Use HTML headings for headings only. Don't use headings to make text BIG or **bold**. [S1]

**Bigger Headings**
Each HTML heading has a default size. However, you can specify the size for any heading with the `style` attribute, using the CSS `font-size` property: [S1]
```html
<h1 style="font-size:60px;">Heading 1</h1>
```

**Heading reference table**

| Tag | Description |
|---|---|
| `<html>` | Defines the root of an HTML document |
| `<body>` | Defines the document's body |
| `<h1>` to `<h6>` | Defines HTML headings |

## 🛠️ 적용 사례 (Applied in summary)
A typical applied structure (e.g. a travel guide) uses `<h1>` for the page title, `<h2>` for region/section titles, and `<h3>` for country/subsection titles — demonstrating heading hierarchy as document outline. No external project/commit applications found in the source.

## 💻 코드 패턴 (Code patterns)
All six heading levels (HTML):
```html
<h1>Heading 1</h1>
<h2>Heading 2</h2>
<h3>Heading 3</h3>
<h4>Heading 4</h4>
<h5>Heading 5</h5>
<h6>Heading 6</h6>
```
Resizing a heading with inline CSS:
```html
<h1 style="font-size:60px;">Heading 1</h1>
```

## ⚖️ 모순 및 업데이트 (Contradictions & updates)
The source stresses semantics over appearance: headings should encode document structure for search engines and users, not be repurposed to make text big or bold — use CSS `font-size` instead. [S1]

## ✅ 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:** 0.90
- **중복 검사 결과:** 신규 생성 (New discovery)

## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[HTML Tutorial]]
- **관련 개념:** [[HTML Paragraphs]], [[HTML Basic]], [[HTML Styles]], [[HTML Elements]]
- **참조 맥락:** Referenced whenever structuring page content into titles and sections for readers and search engines.

## 📚 출처 (Sources)
- [S1] W3Schools — HTML Headings — https://www.w3schools.com/html/html_headings.asp

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