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title

W3CSS Text

🎯 한 줄 통찰 (One-line insight)

w3-opacity is explicitly "designed to work with all colors" as a class, while text-shadow requires inline style attributes and doesn't have a dedicated W3.CSS class — meaning opacity effects are first-class framework citizens while shadow effects lean on raw CSS3, a distinction with a practical consequence: text-shadow doesn't work in IE9 and earlier, but nothing in the source suggests w3-opacity shares that limitation. [S1]

🧠 핵심 개념 (Core concepts)

w3-left-align / w3-right-align — text alignment classes. [S1]
w3-center — centers block-level content (not just text). [S1]
w3-wide — applies wider letter-spacing. [S1]
w3-opacity — reduces text opacity, works with any color. [S1]
Text shadow — CSS3, not a W3.CSS class — applied via inline style="text-shadow:1px 1px 0 #444"; NOT supported in IE9 and earlier. [S1]
Composability — opacity, shadow, bold, and color classes can all stack on one element simultaneously. [S1]

📖 세부 내용 (Details)

Alignment: <div class="w3-left-align"><p>Left aligned text.</p></div> / <div class="w3-right-align">...</div>. [S1]
Centering: <div class="w3-container w3-center"><h2>Centered Content</h2><img ...><p>Some centered text.</p></div>. [S1]
Opacity: <h2 class="w3-opacity">Text Opacity</h2>. [S1]
Shadow (inline style, no dedicated class): <h2 class="w3-blue" style="text-shadow:1px 1px 0 #444">Text Shadow</h2>. [S1]
Stacked effects: <h1 class="w3-text-yellow" style="text-shadow:1px 1px 0 #444"><b>Yellow Text + Shadow + Bold</b></h1>. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

text-shadow의 브라우저 제약: IE9 이하에서는 text-shadow가 동작하지 않는다는 점이 명시적으로 경고됨. [S1]

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — 투명도+그림자+굵게를 조합한 특수 텍스트 효과가 실전 활용의 대표 사례다. [S1]

💻 코드 패턴 (Code patterns)

Combining opacity, color, shadow, and bold on one heading (HTML):

<div class="w3-panel w3-blue">
  <h1 class="w3-text-orange" style="text-shadow:1px 1px 0 #444">
    <b>Orange Text + Shadow + Bold</b>
  </h1>
</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 Fonts Google, W3CSS Round
참조 맥락: 텍스트 시각 효과 — 둥근 모서리(Round) 챕터로 이어짐.

📚 출처 (Sources)

[S1] W3Schools — W3.CSS Text — https://www.w3schools.com/w3css/w3css_text.asp

📝 변경 이력 (Change history)

2026-07-04: Initial draft synthesized from the W3Schools "W3.CSS Text" page (Astra wiki-curation, P-Reinforce v3.1 format).

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