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Antigravity Agent 1cfd3bbb56 docs(10_Wiki): 위키 구조 정리 — 언어 튜토리얼 카테고리 폴더 제거 + 신규 자산 동기화

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title

HOWTO CSS Full Page

🎯 한 줄 통찰 (One-line insight)

This recipe needs the SAME html, body { height: 100% } foundation already established in [[HOWTO CSS Div Full Height]] — a full-page background image is really just "full-height div" plus three background properties (background-position: center; background-repeat: no-repeat; background-size: cover;) that together crop and scale the image to fill the box without distortion or tiling, and switching to a "half page" image is a ONE-LINE change (height: 50% instead of 100%) since the height percentage is what defines "how much of the page" the image covers, not the background properties themselves. [S1]

🧠 핵심 개념 (Core concepts)

html, body { height: 100%; } prerequisite — same requirement as the full-height div recipe: percentage heights need a defined ancestor chain. [S1]
background-size: cover — scales the image to completely cover the element's box, cropping overflow, never leaving gaps or distorting aspect ratio. [S1]
background-position: center — centers the visible crop of the image within the box. [S1]
background-repeat: no-repeat — prevents the image from tiling. [S1]
Height percentage controls page coverage — height: 100% = full page, height: 50% = half page; the background properties stay identical either way. [S1]

📖 세부 내용 (Details)

Full-page: body, html { height: 100%; } .bg { background-image: url("img_girl.jpg"); height: 100%; background-position: center; background-repeat: no-repeat; background-size: cover; }. [S1]
Half-page: same .bg rules, just height: 50%;. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

없음 — 신규 레시피, 기존 문서와 모순되는 내용 없음.

🛠️ 적용 사례 (Applied in summary)

전체 화면과 절반 화면 두 가지 배경 이미지 데모가 원문에서 나란히 제시됨. [S1]

💻 코드 패턴 (Code patterns)

Full-screen background image, cropped and centered without distortion (CSS):

body, html { height: 100%; }
.bg {
  background-image: url("img_girl.jpg");
  height: 100%;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

✅ 검증 상태 및 신뢰도

상태: draft
검증 단계: conceptual
출처 신뢰도: B (W3Schools — widely used educational reference)
신뢰 점수: 0.83
중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

상위/루트: W3Schools HOW TO
관련 개념: HOWTO CSS Div Full Height, HOWTO CSS Hero Image, HOWTO CSS Fullscreen Video
참조 맥락: CSS Layout & Positioning 섹션.

📚 출처 (Sources)

[S1] W3Schools — How To - Full Page Image — https://www.w3schools.com/howto/howto_css_full_page.asp

📝 변경 이력 (Change history)

2026-07-04: Initial draft synthesized from the W3Schools "How To - Full Page Image" recipe (Astra wiki-curation, P-Reinforce v3.1 format).

3.5 KiB Raw Blame History