---
id: howto-css-about-page
title: "How To - CSS About Page"
category: "Web_Recipes"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["about us page CSS", "team card layout"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.8
created_at: 2026-07-04
updated_at: 2026-07-04
review_reason: ""
merge_history: []
tags: ["howto", "css", "w3schools", "layout", "cards"]
raw_sources: ["https://www.w3schools.com/howto/howto_css_about_page.asp"]
applied_in: []
github_commit: ""
---

# [[HOWTO CSS About Page]]

## 🎯 한 줄 통찰 (One-line insight)
The team-card grid uses the OLDER `float: left` + `width: 33.3%` technique (not Flexbox/Grid) combined with the classic `::after { content: ""; clear: both; display: table; }` clearfix on the row container — a reminder that this recipe predates (or intentionally avoids) the Grid & Flexbox recipes covered elsewhere in this cookbook, and that float-based column layouts still require the clearfix hack to prevent the container from collapsing to zero height. [S1]

## 🧠 핵심 개념 (Core concepts)
- **`float: left` columns** — `.column { float: left; width: 33.3%; }` creates a 3-column grid without Flexbox/Grid. [S1]
- **Clearfix on the row** — `.container::after, .row::after { content: ""; clear: both; display: table; }` prevents the floated columns from collapsing their parent's height. [S1]
- **`box-sizing: border-box` reset** — applied globally via `html { box-sizing: border-box; } *, *:before, *:after { box-sizing: inherit; }`, so padding doesn't add to declared widths. [S1]
- **Responsive breakpoint** — `@media screen and (max-width: 650px) { .column { width: 100%; display: block; } }` stacks the columns on narrow screens. [S1]

## 📖 세부 내용 (Details)
- Structure: an `.about-section` intro block, followed by a `.row` of three `.column > .card` team-member blocks (image, name, title, bio, email, contact button). [S1]
- Card styling: `.card { box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2); margin: 8px; }` gives each team member a subtle elevation effect. [S1]
- Button hover: `.button:hover { background-color: #555; }`. [S1]

## ⚖️ 모순 및 업데이트 (Contradictions & updates)
없음 — 신규 레시피, 기존 문서와 모순되는 내용 없음.

## 🛠️ 적용 사례 (Applied in summary)
3명의 팀원 카드를 나열하는 "About Us" 페이지 레이아웃 전체가 원문에서 직접 실전 예제로 제시됨. [S1]

## 💻 코드 패턴 (Code patterns)
Float-based 3-column layout with clearfix and a responsive breakpoint (CSS):
```css
.column { float: left; width: 33.3%; padding: 0 8px; }
.row::after { content: ""; clear: both; display: table; }
@media screen and (max-width: 650px) {
  .column { width: 100%; display: block; }
}
```

## ✅ 검증 상태 및 신뢰도
- **상태:** draft
- **검증 단계:** conceptual
- **출처 신뢰도:** B (W3Schools — widely used educational reference)
- **신뢰 점수:** 0.80
- **중복 검사 결과:** 신규 생성 (New discovery)

## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[W3Schools HOW TO]]
- **관련 개념:** [[HOWTO CSS Cards]], [[HOWTO CSS Team]], [[HOWTO CSS Three Columns]]
- **참조 맥락:** CSS Layout & Positioning 섹션.

## 📚 출처 (Sources)
- [S1] W3Schools — How To - About Page — https://www.w3schools.com/howto/howto_css_about_page.asp

## 📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "How To - About Page" recipe (Astra wiki-curation, P-Reinforce v3.1 format).