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Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-11 11:05:56 +09:00

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id title category status verification_status canonical_id aliases duplicate_of source_trust_level confidence_score created_at updated_at review_reason merge_history tags raw_sources applied_in github_commit
w3css-animate W3CSS Animate Programming_Language draft conceptual
w3-animate-top
w3-spin
W3.CSS 애니메이션
B 0.87 2026-07-04 2026-07-04
w3css
css-framework
w3schools
animation
https://www.w3schools.com/w3css/w3css_animate.asp

W3CSS Animate

🎯 한 줄 통찰 (One-line insight)

Every directional slide-in animation (w3-animate-top/bottom/left/right) shares the exact same distance parameter (-300px to 0) regardless of direction — a single consistent "travel distance" convention across four otherwise-independent classes, which means combining them on sibling elements (as in the "Fade All" example with 4 images) produces a synchronized, evenly-timed multi-directional entrance effect for free. [S1]

🧠 핵심 개념 (Core concepts)

  • w3-animate-top / -bottom / -left / -right — slide an element in from that direction, travel distance always -300px to 0. [S1]
  • w3-animate-opacity — fades an element's opacity from 0 to 1 over 0.8 seconds (fade-in only, one-shot). [S1]
  • w3-animate-zoom — scales an element from 0% to 100% size. [S1]
  • w3-animate-fading — continuously fades in AND out on a repeating ~10-second cycle (the only class here that loops infinitely; all others are one-shot). [S1]
  • w3-spin — spins an element a full 360 degrees. [S1]
  • All animation classes are pure CSS (no JavaScript needed) — applied simply by adding the class name. [S1]

📖 세부 내용 (Details)

  • Slide in from top: <div class="w3-container"><h1 class="w3-center w3-animate-top">Animation is Fun!</h1></div>. [S1]
  • Fade in: <div class="w3-animate-opacity">..</div>. [S1]
  • Continuous fade in/out loop: <div class="w3-animate-fading">..</div> — distinct from w3-animate-opacity, which only fades in once. [S1]
  • Combining four different directional animations on four images simultaneously: <img class="w3-animate-top" src="img_01.jpg"><img class="w3-animate-zoom" src="img_02.jpg"><img class="w3-animate-left" src="img_03.jpg"><img class="w3-animate-bottom" src="img_04.jpg">. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

  • w3-animate-opacity vs w3-animate-fading의 차이: 전자는 0→1로 한 번만 페이드인하고 끝나지만, 후자는 0→1→0을 약 10초 주기로 무한 반복한다는 점이 구분되어야 함. [S1]

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — 서로 다른 방향의 슬라이드 애니메이션을 여러 이미지에 동시 적용해 입체적인 등장 효과를 만드는 조합이 실전 활용의 대표 사례다. [S1]

💻 코드 패턴 (Code patterns)

Combining different directional animations on multiple elements (HTML/CSS, no JS needed):

<img class="w3-animate-top" src="img_01.jpg">
<img class="w3-animate-zoom" src="img_02.jpg">
<img class="w3-animate-left" src="img_03.jpg">
<img class="w3-animate-bottom" src="img_04.jpg">

검증 상태 및 신뢰도

  • 상태: draft
  • 검증 단계: conceptual
  • 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
  • 신뢰 점수: 0.87
  • 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

  • 상위/루트: W3.CSS Tutorial
  • 관련 개념: W3CSS Dark Mode, W3CSS Effects
  • 참조 맥락: 슬라이드/페이드/줌 애니메이션 — 투명도·그레이스케일 등 정적 효과(Effects) 챕터로 이어짐.

📚 출처 (Sources)

📝 변경 이력 (Change history)

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