---
id: css-media-queries-examples
title: "CSS Media Queries Examples"
category: "Frontend"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["media query examples", "responsive layout examples", "responsive columns", "responsive navigation menu", "hide element responsive"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.87
created_at: 2026-06-23
updated_at: 2026-06-23
review_reason: ""
merge_history: []
tags: ["css", "web", "frontend", "w3schools", "media-queries", "responsive", "flexbox"]
raw_sources: ["https://www.w3schools.com/css/css3_mediaqueries_ex.asp"]
applied_in: []
github_commit: ""
---

# [[CSS Media Queries Examples]]

## 🎯 한 줄 통찰 (One-line insight)
Media queries are a popular technique for delivering a tailored style sheet to different devices — switching background colors, reflowing columns, stacking navigation, hiding elements, and respecting user preferences at breakpoints. [S1]

## 🧠 핵심 개념 (Core concepts)
- **Purpose** — media queries are a popular technique for delivering a tailored style sheet to different devices. [S1]
- **Breakpoint-driven layout** — combining `@media` with flexbox lets grids change column counts and stack at smaller widths. [S1]
- **Direction switching** — `flex-direction: column` inside a query converts horizontal navigation/columns into vertical stacks on small screens. [S1]
- **Conditional visibility** — `display: none` inside a query hides elements below a width. [S1]
- **Beyond width** — queries can target `orientation` and user preferences like `prefers-reduced-motion`. [S1]
- The page directs readers to the Responsive Web Design Tutorial for deeper learning. [S1]

## 🧩 추출된 패턴 (Extracted patterns)
- **Mobile-first color tiering** — set a base style, then upgrade it at `min-width: 768px` and `min-width: 992px`. [S1]
- **Reflowing flex grid** — `flex: 25%` columns drop to `flex: 50%` at `max-width: 992px`, then stack via `flex-direction: column` at `max-width: 600px`. [S1]
- **Collapse-to-stack navigation** — a `display: flex` menu becomes vertical with `flex-direction: column` at `max-width: 600px`. [S1]
- **Hide / resize at breakpoint** — `display: none` or a larger `font-size` keyed to a width. [S1]
- **Preference-aware styling** — `orientation: landscape` and `prefers-reduced-motion: reduce`. [S1]

## 📖 세부 내용 (Details)
Media queries are a popular technique for delivering a tailored style sheet to different devices. The page presents several practical examples. [S1]

**Example 1 — background color across breakpoints** [S1]
```css
/* Base style for mobile devices */
body {
  background-color: olive;
  color: white;
}

/* For devices with a minimum width of 768px (Medium) */
@media screen and (min-width: 768px) {
  body {
    background-color: blue;
    color: white;
  }
}

/* For devices with a minimum width of 992px (Large) */
@media screen and (min-width: 992px) {
  body {
    background-color: tan;
    color: black;
  }
}
```

**Example 2 — flexible columns layout** [S1]
```css
* {
  box-sizing: border-box;
}

/* Container for flexboxes */
.container {
  display: flex;
  flex-wrap: wrap;
}

/* Create four equal columns */
.column {
  flex: 25%;
  padding: 20px;
}

/* On screens that are 992px wide or less, go from four columns to two columns */
@media screen and (max-width: 992px) {
  .column {
    flex: 50%;
  }
}

/* On screens that are 600px wide or less, make the columns stack on top of each other */
@media screen and (max-width: 600px) {
  .container {
    flex-direction: column;
  }
}
```

**Example 3 — responsive navigation menu** [S1]
```css
ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  background-color: #333333;
  display: flex;
}

ul li a {
  display: block;
  color: white;
  padding: 14px 16px;
  text-decoration: none;
}

ul li a:hover {
  background-color: #111111;
}

/* For viewport width 600px or less, make the menu links stack on top of each other */
@media screen and (max-width: 600px) {
  ul {
    flex-direction: column;
  }
}
```

**Example 4 — hide elements** [S1]
```css
/* Hide element if the viewport width is 600px or less */
@media screen and (max-width: 600px) {
  #div1 {
    display: none;
  }
}
```

**Example 5 — change font size** [S1]
```css
/* If viewport width is 600px or more, set font-size to 80px */
@media screen and (min-width: 600px) {
  #div1 {
    font-size: 80px;
  }
}
```

**Example 6 — screen orientation** [S1]
```css
@media only screen and (orientation: landscape) {
  body {
    background-color: lightblue;
  }
}
```

**Example 7 — user preferences (reduced motion)** [S1]
```css
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}
```

## 🛠️ 적용 사례 (Applied in summary)
The page's applied examples are: a tiered `body` background (olive → blue at 768px → tan at 992px); a four-column flex grid that becomes two columns at 992px and stacks at 600px; a horizontal nav that stacks vertically at 600px; hiding `#div1` below 600px; enlarging `#div1` font to 80px at 600px+; a landscape-orientation background; and a reduced-motion rule disabling animations/transitions. No external project/commit applications found in the source.

## 💻 코드 패턴 (Code patterns)
Reflowing flex grid (language: CSS):
```css
.container { display: flex; flex-wrap: wrap; }
.column { flex: 25%; padding: 20px; }
@media screen and (max-width: 992px) { .column { flex: 50%; } }
@media screen and (max-width: 600px) { .container { flex-direction: column; } }
```
Respect reduced-motion preference (language: CSS):
```css
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}
```

## ⚖️ 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:** 0.87
- **중복 검사 결과:** 신규 생성 (New discovery)

## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[CSS Tutorial]]
- **관련 개념:** [[CSS Media Queries]], [[CSS Flexbox]], [[CSS Box Sizing]], [[CSS Variables in Media Queries]]
- **참조 맥락:** Referenced for concrete responsive recipes — column reflow, menu stacking, conditional hiding, and preference-aware styling.

## 📚 출처 (Sources)
- [S1] W3Schools — CSS Media Queries Examples — https://www.w3schools.com/css/css3_mediaqueries_ex.asp

## 📝 변경 이력 (Change history)
- 2026-06-23: Initial draft synthesized from the W3Schools "CSS Media Queries Examples" page (Astra wiki-curation, P-Reinforce v3.1 format).