2nd/10_Wiki/Topic_CSS/CSS_Text_Shadow.md

---
id: css-text-shadow
title: "CSS Text Shadow"
category: "Frontend"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["text-shadow", "CSS text shadow", "text shadow effect", "neon text CSS", "text glow"]
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", "text-shadow", "typography"]
raw_sources: ["https://www.w3schools.com/css/css_text_shadow.asp"]
applied_in: []
github_commit: ""
---

# [[CSS Text Shadow]]

## 🎯 한 줄 통찰 (One-line insight)
The `text-shadow` property adds shadow effects to text, taking horizontal and vertical offsets with optional blur radius and color, and supports comma-separated multiple shadows for neon-style glows. [S1]

## 🧠 핵심 개념 (Core concepts)
- **`text-shadow` property** — adds shadow effects to text. [S1]
- **Basic syntax** — requires a horizontal offset and a vertical offset value. [S1]
- **Optional parameters** — a color and a blur radius can be added to the shadow. [S1]
- **Multiple shadows** — several shadows can be applied to the same text by separating them with commas. [S1]

## 🧩 추출된 패턴 (Extracted patterns)
- **Offset-only shadow** — `text-shadow: 2px 2px;` sets only the horizontal and vertical offset. [S1]
- **Colored shadow** — append a color: `text-shadow: 2px 2px red;`. [S1]
- **Blurred shadow** — add a blur value before the color: `text-shadow: 2px 2px 5px red;`. [S1]
- **Neon glow** — zero offset with blur produces a glow: `text-shadow: 0 0 3px #ff0000;`. [S1]
- **Layered glow** — comma-chain several shadows to build multi-color neon effects. [S1]

## 📖 세부 내용 (Details)
The `text-shadow` property specifies the shadow effect added to text. The basic syntax requires horizontal and vertical offset values, with optional color and blur parameters. [S1]

**Basic shadow** — horizontal and vertical offset only: [S1]
```css
h1 {
  text-shadow: 2px 2px;
}
```

**With color** — adding a color to the shadow: [S1]
```css
h1 {
  text-shadow: 2px 2px red;
}
```

**With blur effect** — adding a blur radius before the color: [S1]
```css
h1 {
  text-shadow: 2px 2px 5px red;
}
```

**White text with a dark shadow:** [S1]
```css
h1 {
  color: white;
  text-shadow: 2px 2px 4px #000000;
}
```

**Red neon glow** — zero offset with a small blur: [S1]
```css
h1 {
  text-shadow: 0 0 3px #ff0000;
}
```

**Multiple shadows (red and blue neon)** — comma-separated shadow list: [S1]
```css
h1 {
  text-shadow: 0 0 3px #ff0000, 0 0 5px #0000ff;
}
```

**Multiple color neon glow:** [S1]
```css
h1 {
  color: white;
  text-shadow: 1px 1px 2px black, 0 0 25px blue, 0 0 5px red;
}
```

**Property reference** [S1]

| Property | Description |
|----------|-------------|
| `text-shadow` | Specifies the shadow effect added to text |

## 🛠️ 적용 사례 (Applied in summary)
The page's own examples demonstrate the property applied to `h1` elements — from a plain offset shadow to layered neon glows combining multiple comma-separated shadows. No external project/commit applications found in the source.

## 💻 코드 패턴 (Code patterns)
General `text-shadow` form (language: CSS):
```css
selector {
  text-shadow: h-offset v-offset blur color;
}
```
Concrete neon example:
```css
h1 {
  color: white;
  text-shadow: 1px 1px 2px black, 0 0 25px blue, 0 0 5px red;
}
```

## ⚖️ 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 Text]], [[CSS Fonts]], [[CSS Color]]
- **참조 맥락:** Referenced when adding depth, emphasis, or neon/glow effects to headings and display text.

## 📚 출처 (Sources)
- [S1] W3Schools — CSS Text Shadow — https://www.w3schools.com/css/css_text_shadow.asp

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