docs(10_Wiki): W3Schools 위키화 — HTML/CSS/JavaScript(core)

W3Schools 튜토리얼을 P-Reinforce v3.1 포맷으로 위키화(영어 본문, 한/영 섹션 헤더). - Topic_HTML: 59문서 (튜토리얼+예제, 레퍼런스/메타 제외) - Topic_CSS: 190문서 (메인 + Advanced/Flexbox/Grid/RWD 전체) - Topic_JavaScript: 120문서 (코어 언어; Temporal/DOM상세/BOM/WebAPI/AJAX/jQuery/Graphics 등은 후속) 각 폴더 00_INDEX.md(MOC) 포함. 코드 verbatim, 미확인분은 "Not found in source" 표기. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-23 19:21:18 +09:00
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+---
+id: css-web-safe-fonts
+title: "CSS Web Safe Fonts"
+category: "Frontend"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["web safe fonts", "CSS web safe fonts", "universal fonts", "cross-browser fonts", "safe typefaces"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.88
+created_at: 2026-06-23
+updated_at: 2026-06-23
+review_reason: ""
+merge_history: []
+tags: ["css", "web", "frontend", "w3schools", "fonts", "typography"]
+raw_sources: ["https://www.w3schools.com/css/css_font_websafe.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[CSS Web Safe Fonts]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Web safe fonts are fonts universally installed across browsers and devices, but since none are 100% safe you should always declare backup (fallback) fonts in `font-family` and test across browsers before publishing. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Definition** — web safe fonts are fonts that are universally installed across all browsers and devices. [S1]
+- **No font is 100% safe** — there is always a chance that a font is not found or is not installed properly. [S1]
+- **Always use backups** — use backup (fallback) fonts in the `font-family` property. [S1]
+- **Test before publishing** — always check how fonts appear on different browsers and devices, and always use fallback fonts. [S1]
+
+## 🧩 추출된 패턴 (Extracted patterns)
+- **Fallback declaration** — pair a web safe font with safer alternatives and a generic family: `font-family: Tahoma, Verdana, sans-serif;`. [S1]
+- **Pick by generic family** — choose the web safe font from the family (sans-serif, serif, monospace, cursive) that matches the intended style. [S1]
+
+## 📖 세부 내용 (Details)
+Web safe fonts are fonts that are universally installed across all browsers and devices. An important caveat is that there are no 100% completely web safe fonts — there is always a chance that a font is not found or is not installed properly — so the tutorial emphasizes using backup fonts in the `font-family` property. [S1]
+
+Fallback example: [S1]
+```css
+p {
+  font-family: Tahoma, Verdana, sans-serif;
+}
+```
+
+**Web safe fonts list** — nine recommended fonts with their generic families: [S1]
+
+| Font | Generic family |
+|---|---|
+| Arial | sans-serif |
+| Verdana | sans-serif |
+| Tahoma | sans-serif |
+| Trebuchet MS | sans-serif |
+| Times New Roman | serif |
+| Georgia | serif |
+| Garamond | serif |
+| Courier New | monospace |
+| Brush Script MT | cursive |
+
+**Font descriptions:** [S1]
+- **Arial** — the most widely used font for both online and printed media, and the default font in Google Docs.
+- **Verdana** — easily readable even for small font sizes.
+- **Tahoma** — has less space between the characters.
+- **Trebuchet MS** — designed by Microsoft in 1996; not supported by all mobile operating systems.
+- **Times New Roman** — one of the most recognizable fonts in the world, used in many newspapers.
+- **Georgia** — an elegant serif font, very readable at different font sizes.
+- **Garamond** — a classical font used for many printed books, with a timeless look.
+- **Courier New** — the most widely used monospace serif font, the standard font for movie screenplays.
+- **Brush Script MT** — designed to mimic handwriting, but can be hard to read.
+
+**Recommendation:** Before you publish your website, always check how your fonts appear on different browsers and devices, and always use fallback fonts. [S1]
+
+## 🛠️ 적용 사례 (Applied in summary)
+The page's example applies a Tahoma → Verdana → sans-serif fallback stack to paragraph text, demonstrating the recommended backup pattern. No external project/commit applications found in the source.
+
+## 💻 코드 패턴 (Code patterns)
+Web safe fallback stack (language: CSS):
+```css
+p {
+  font-family: Tahoma, Verdana, sans-serif;
+}
+```
+
+## ⚖️ 비교 및 선택 기준 (Comparison & decision criteria)
+The nine web safe fonts span four generic families, guiding selection by style and constraint: sans-serif options (Arial, Verdana, Tahoma, Trebuchet MS) for modern readable text — though Trebuchet MS is not supported by all mobile operating systems; serif options (Times New Roman, Georgia, Garamond) for formal/print-like text; Courier New for monospace; and Brush Script MT for a handwriting look that may be hard to read. Because no font is 100% safe, the deciding rule is to always pair the chosen font with fallbacks and a generic family. [S1]
+
+## ⚖️ 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:** 0.88
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[CSS Tutorial]]
+- **관련 개념:** [[CSS Font Family]], [[CSS Font Fallbacks]], [[CSS Google Fonts]]
+- **참조 맥락:** Referenced when choosing typefaces that will render reliably across browsers and devices without web font loading.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — CSS Web Safe Fonts — https://www.w3schools.com/css/css_font_websafe.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-06-23: Initial draft synthesized from the W3Schools "CSS Web Safe Fonts" page (Astra wiki-curation, P-Reinforce v3.1 format).