2nd/10_Wiki/Topic_CSS/CSS_Shadow_Text.md

---
id: css-text-shadow-effects
title: "CSS Text Shadow Effects"
category: "Frontend"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["text-shadow", "CSS text shadow", "text glow CSS", "neon text CSS", "text outline shadow"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.9
created_at: 2026-06-23
updated_at: 2026-06-23
review_reason: ""
merge_history: []
tags: ["css", "web", "frontend", "w3schools", "text-shadow", "shadows", "typography"]
raw_sources: ["https://www.w3schools.com/css/css3_shadows.asp"]
applied_in: []
github_commit: ""
---

# [[CSS Text Shadow Effects]]

## 🎯 한 줄 통찰 (One-line insight)
The `text-shadow` property adds shadow to text using horizontal and vertical offsets (with optional blur and color), and multiple comma-separated shadows can be layered to build glow, neon, and text-outline effects. [S1]

## 🧠 핵심 개념 (Core concepts)
- **`text-shadow` adds shadow to text** — the property applies a shadow to the text it styles. [S1]
- **Minimum form = two offsets** — in its simplest use you specify only the horizontal and vertical shadow offsets. [S1]
- **Optional blur and color** — you can add a blur radius and a color to the shadow. [S1]
- **Multiple shadows** — you can layer more than one shadow by separating them with commas, enabling glow and outline effects. [S1]
- **Related to `box-shadow`** — the page links onward to `box-shadow`, which applies shadow to elements (boxes) rather than text. [S1]

## 🧩 추출된 패턴 (Extracted patterns)
- **Offset-only pattern** — `text-shadow: <h-offset> <v-offset>;`. [S1]
- **Offset + color pattern** — append a color: `text-shadow: 2px 2px red;`. [S1]
- **Offset + blur + color pattern** — `text-shadow: 2px 2px 5px red;`. [S1]
- **Neon glow pattern** — zero offsets with blur: `text-shadow: 0 0 3px #ff0000;`, stackable for multi-color glow. [S1]
- **Text-border pattern** — four shadows offset in each direction to outline the text. [S1]

## 📖 세부 내용 (Details)
**Basic text-shadow (horizontal and vertical offset)** [S1]
The simplest use specifies the horizontal shadow (2px) and the vertical shadow (2px):
```css
h1 {
  text-shadow: 2px 2px;
}
```

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

**Add a blur effect to the shadow** [S1]
```css
h1 {
  text-shadow: 2px 2px 5px red;
}
```

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

**Red neon glow effect** [S1]
```css
h1 {
  text-shadow: 0 0 3px #ff0000;
}
```

**Red and blue neon glow effect (multiple shadows)** [S1]
To add more than one shadow to the text, add a comma-separated list of shadows:
```css
h1 {
  text-shadow: 0 0 3px #ff0000, 0 0 5px #0000ff;
}
```

**Border around text using four shadows** [S1]
```css
h1 {
  color: coral;
  text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;
}
```

**Note** [S1]
The page introduces `box-shadow` as a related property covered on the next page (Box Shadow), which adds shadow to elements rather than text.

## 🛠️ 적용 사례 (Applied in summary)
The page's own demonstrations (`h1` elements showing offset-only, colored, blurred, white-on-black, neon glow, and text-border shadows) serve as the applied examples. No external project/commit applications found in the source.

## 💻 코드 패턴 (Code patterns)
Simple text shadow (language: CSS):
```css
h1 {
  text-shadow: 2px 2px 5px red;
}
```
Neon glow (stacked shadows):
```css
h1 {
  text-shadow: 0 0 3px #ff0000, 0 0 5px #0000ff;
}
```
Text outline via four shadows:
```css
h1 {
  color: coral;
  text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;
}
```

## ⚖️ 비교 및 선택 기준 (Comparison & decision criteria)
- **`text-shadow` vs `box-shadow`** — `text-shadow` shadows the glyphs of text; `box-shadow` (the next page) shadows the element box. Choose by what you want shadowed. [S1]
- **Single vs multiple shadows** — one shadow gives a simple drop effect; comma-separated multiple shadows enable neon glow and full text outlines. [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:** 0.90
- **중복 검사 결과:** 신규 생성 (New discovery)

## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[CSS Tutorial]]
- **관련 개념:** [[CSS Box Shadow]], [[CSS Text Effects]], [[CSS Linear Gradients]]
- **참조 맥락:** Referenced when adding depth, glow, or outline to text headings and labels.

## 📚 출처 (Sources)
- [S1] W3Schools — CSS Text Shadow Effects — https://www.w3schools.com/css/css3_shadows.asp

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