docs(10_Wiki): Dev 폴더 누락분 반영 — Topic_Programming으로 통합
이전 재구성 작업에서 Dev/ 폴더가 누락되었던 것을 반영. - Dev/Topic_Programming(중첩 폴더, 78개)은 Dev 자체 최상위 폴더들 (Architecture/Conventions/Engineering_Intelligence 등)과 완전 중복이라 제거. - Dev 최상위 엔지니어링 지식 폴더(Architecture/Conventions/Engineering_Intelligence/ Failure_Library/Generalized_Principles/Language/Pattern_Catalog/Platform_Guides/ Subsystems, 77개)는 이미 Topic_Programming/Topic_Programming에 더 최신 버전이 존재해 중복 제거(고유 콘텐츠 1개는 예외 처리하여 이동 보존). - Dev의 W3Schools 언어 튜토리얼 폴더(Topic_C/CPP/CSS/CSharp/HOWTO/HTML/Java/ JavaScript/PHP/Python/SQL/W3CSS, 1201개)는 전부 Topic_Programming 하위로 이동. - 에이전트 운영 상태(.astra/docs)는 그대로 유지, 콘텐츠 폴더만 정리. - Topic_Programming 최종 문서 수: 2784 → 3985.
This commit is contained in:
Antigravity Agent
@@ -0,0 +1,75 @@
|
||||
---
|
||||
id: css-image-effects
|
||||
title: "CSS Image Effects"
|
||||
category: "Frontend"
|
||||
status: "draft"
|
||||
verification_status: "conceptual"
|
||||
canonical_id: ""
|
||||
aliases: ["image opacity", "image transparency", "text on image", "image text positioning", "image effects"]
|
||||
duplicate_of: ""
|
||||
source_trust_level: "B"
|
||||
confidence_score: 0.85
|
||||
created_at: 2026-06-23
|
||||
updated_at: 2026-06-23
|
||||
review_reason: ""
|
||||
merge_history: []
|
||||
tags: ["css", "web", "frontend", "w3schools", "images", "opacity"]
|
||||
raw_sources: ["https://www.w3schools.com/css/css3_images_effects.asp"]
|
||||
applied_in: []
|
||||
github_commit: ""
|
||||
---
|
||||
|
||||
# [[CSS Image Effects]]
|
||||
|
||||
## 🎯 한 줄 통찰 (One-line insight)
|
||||
The W3Schools "CSS Image Effects" page covers two effects: making images transparent with the `opacity` property, and overlaying text on an image positioned at the corners or center. [S1]
|
||||
|
||||
## 🧠 핵심 개념 (Core concepts)
|
||||
- **Image opacity** — the `opacity` property controls how transparent an image is, taking values from `0.0` (fully transparent) to `1.0` (fully opaque). [S1]
|
||||
- **Partial transparency** — values between, such as `0.5`, render the image partially see-through. [S1]
|
||||
- **Text on an image** — text can be overlaid on an image and positioned at the top left, top right, bottom left, bottom right, or centered. [S1]
|
||||
|
||||
## 🧩 추출된 패턴 (Extracted patterns)
|
||||
- **Opacity as a 0–1 dial** — transparency is a single continuous value where lower means more see-through, useful for hover dimming or watermark effects. [S1]
|
||||
- **Corner-anchored overlay** — positioning text over an image relies on a positioned container with the text element placed against a chosen corner or centered. [S1]
|
||||
|
||||
## 📖 세부 내용 (Details)
|
||||
**Image opacity / transparency**
|
||||
The `opacity` property specifies the transparency of an image. It accepts a value from `0.0` to `1.0`: the lower the value, the more transparent the image. A value of `0.0` makes the image fully transparent, an intermediate value such as `0.5` makes it partially transparent, and `1.0` is the default (fully opaque). [S1]
|
||||
|
||||
**Image text positioning**
|
||||
Text can be placed on top of an image and positioned in different spots: top left, top right, bottom left, bottom right, or centered. The fetched content describes these positioning options but does not include the inline CSS declaration blocks for each placement — those appear only behind the page's "Try it Yourself" examples. The exact per-position CSS is "Not found in source". [S1]
|
||||
|
||||
> Note: The page title "CSS Image Effects" on W3Schools does NOT cover image reflection (`box-reflect`). The fetched content confirms the page is limited to image opacity/transparency and image text positioning. [S1]
|
||||
|
||||
## 🛠️ 적용 사례 (Applied in summary)
|
||||
The source's applied cases are the opacity-based transparency demos (full, partial, and full opacity) and the text-over-image positioning demos. No external project/commit applications found in the source.
|
||||
|
||||
## 💻 코드 패턴 (Code patterns)
|
||||
Image transparency dial (language: CSS):
|
||||
```css
|
||||
img {
|
||||
opacity: 0.5;
|
||||
}
|
||||
```
|
||||
|
||||
## ⚖️ 모순 및 업데이트 (Contradictions & updates)
|
||||
No contradictions found in the source. Note that the per-corner text-positioning CSS was not present inline in the fetched content (marked "Not found in source" above).
|
||||
|
||||
## ✅ 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:** 0.85
|
||||
- **중복 검사 결과:** 신규 생성 (New discovery)
|
||||
|
||||
## 🔗 지식 그래프 (Knowledge Graph)
|
||||
- **상위/루트:** [[CSS Tutorial]]
|
||||
- **관련 개념:** [[CSS Image Hover]], [[CSS Image Filters]], [[CSS Image Styling]], [[CSS Position]]
|
||||
- **참조 맥락:** Referenced when dimming images via opacity or labeling images with overlaid text.
|
||||
|
||||
## 📚 출처 (Sources)
|
||||
- [S1] W3Schools — CSS Image Effects — https://www.w3schools.com/css/css3_images_effects.asp
|
||||
|
||||
## 📝 변경 이력 (Change history)
|
||||
- 2026-06-23: Initial draft synthesized from the W3Schools "CSS Image Effects" page (Astra wiki-curation, P-Reinforce v3.1 format).
|
||||
Reference in New Issue
Block a user