2nd/10_Wiki/Topics/Domain_Programming/Topic_CSS/CSS_Padding.md

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

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
css-padding	CSS Padding	Frontend	draft	conceptual		padding CSS padding padding shorthand padding-top element spacing		B	0.89	2026-06-23	2026-06-23			css web frontend w3schools padding box-model	https://www.w3schools.com/css/css_padding.asp

CSS Padding

🎯 한 줄 통찰 (One-line insight)

The CSS padding properties generate space around an element's content, inside of any defined borders. [S1]

🧠 핵심 개념 (Core concepts)

• Definition — Padding is used to generate space around an element's content, inside of any defined borders. [S1]
• Four directional properties — padding-top, padding-right, padding-bottom, and padding-left set padding on each side individually. [S1]
• Accepted values — length (px, pt, cm, etc.), percentage (% of the containing element's width), or inherit. Negative values are not permitted. [S1]
• Shorthand — the padding property lets you set all four sides in one declaration. [S1]

🧩 추출된 패턴 (Extracted patterns)

• Per-side control vs. shorthand — use individual padding-* properties for asymmetric spacing, or the padding shorthand when expressing several sides at once. [S1]
• Clockwise shorthand order — when four values are given, they apply top → right → bottom → left (clockwise from the top). [S1]

📖 세부 내용 (Details)

What padding is The CSS padding properties are used to generate space around an element's content, inside of any defined borders. [S1]

Individual side properties CSS provides four properties for setting the padding of each side of an element: [S1]

• padding-top
• padding-right
• padding-bottom
• padding-left

All the padding properties can accept the following values: a length (px, pt, cm, etc.), a percentage (% of the width of the containing element), or inherit (the padding is inherited from the parent element). Negative values are not allowed. [S1]

The padding shorthand property To shorten the code, it is possible to specify all the padding properties in one property. The shorthand interprets its values by count: [S1]

If the padding property has four values — padding: 25px 50px 75px 100px; — then: [S1]

• top padding is 25px
• right padding is 50px
• bottom padding is 75px
• left padding is 100px

div {
  padding: 25px 50px 75px 100px;
}

If the padding property has three values — padding: 25px 50px 75px; — then: [S1]

• top padding is 25px
• right and left padding are 50px
• bottom padding is 75px

div {
  padding: 25px 50px 75px;
}

If the padding property has two values — padding: 25px 50px; — then: [S1]

• top and bottom padding are 25px
• right and left padding are 50px

div {
  padding: 25px 50px;
}

If the padding property has one value — padding: 25px; — then all four paddings are 25px. [S1]

div {
  padding: 25px;
}

🛠️ 적용 사례 (Applied in summary)

The shorthand declarations above are the page's own applied examples, showing how 1–4 values map to the four sides. No external project/commit applications found in the source.

💻 코드 패턴 (Code patterns)

Set padding per side (language: CSS):

div {
  padding-top: 25px;
  padding-right: 50px;
  padding-bottom: 75px;
  padding-left: 100px;
}

Equivalent four-value shorthand:

div {
  padding: 25px 50px 75px 100px;
}

⚖️ 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: 0.89
• 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

• 상위/루트: CSS Tutorial
• 관련 개념: CSS Padding and Box Sizing, CSS Box Model, CSS Height and Width
• 참조 맥락: Referenced whenever inner spacing between content and its border needs to be controlled.

📚 출처 (Sources)

• [S1] W3Schools — CSS Padding — https://www.w3schools.com/css/css_padding.asp

📝 변경 이력 (Change history)

• 2026-06-23: Initial draft synthesized from the W3Schools "CSS Padding" page (Astra wiki-curation, P-Reinforce v3.1 format).