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title

CSS Button Hover Effects

🎯 한 줄 통찰 (One-line insight)

The :hover pseudo-class changes a button's appearance on mouse-over, and combined with transition-duration, box-shadow, opacity, and width it produces hover, shadow, disabled, and full-width button effects. [S1]

🧠 핵심 개념 (Core concepts)

:hover pseudo-class — used to change the style of a button when you mouse over it. [S1]
transition-duration — added to the base button so the hover change animates smoothly. [S1]
box-shadow — adds a shadow to a button (always-on or on hover). [S1]
opacity — adds transparency to create a "disabled" look (paired with cursor: not-allowed). [S1]
width — defines a specific width for a button. [S1]

🧩 추출된 패턴 (Extracted patterns)

Animated hover — set transition-duration on .button and override background-color/color in .button:hover. [S1]
Shadow on hover vs always — .button1 carries a permanent shadow; .button2:hover shows the shadow only on hover. [S1]
Disabled look — combine reduced opacity with cursor: not-allowed. [S1]
Sizing — set width in px (250px), percentage of parent (50%), or full width (100%). [S1]

📖 세부 내용 (Details)

Hoverable buttons — the CSS :hover pseudo-class is used to change the style of a button when you mouse over it. [S1]

.button {
  transition-duration: 0.4s;
}

.button:hover {
  background-color: #4CAF50; /* Green */
  color: white;
}

Buttons with shadow — the CSS box-shadow property is used to add a shadow to a button. .button1 has a permanent shadow; .button2 shows a shadow only on hover. [S1]

.button1 {
  box-shadow: 0 8px 16px 0 rgba(0,0,0,0.6);
}

.button2:hover {
  box-shadow: 0 8px 16px 0 rgba(0,0,0,0.6);
}

Disabled button — the CSS opacity property can be used to add transparency to a button (creates a "disabled" look). [S1]

.disabledbtn {
  opacity: 0.6;
  cursor: not-allowed;
}

Button width — the CSS width property can be used to define a specific width for a button. By default, the size of a button is determined by its text content. [S1]

.button1 {
  width: 250px;
}

.button2 {
  width: 50%;
}

.button3 {
  width: 100%;
}

🛠️ 적용 사례 (Applied in summary)

The page's own examples are the applied cases: an animated :hover color swap, permanent vs hover-only box-shadow, a .disabledbtn style, and fixed/percentage/full-width button widths. No external project/commit applications found in the source.

💻 코드 패턴 (Code patterns)

Animated hover color change (language: CSS):

.button {
  transition-duration: 0.4s;
}

.button:hover {
  background-color: #4CAF50;
  color: white;
}

Show shadow only on hover (language: CSS):

.button2:hover {
  box-shadow: 0 8px 16px 0 rgba(0,0,0,0.6);
}

⚖️ 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 Styling Buttons, CSS Box Shadow, CSS Pseudo-classes
참조 맥락: Referenced when adding interactive hover, shadow, disabled, or width behavior to styled buttons.

📚 출처 (Sources)

[S1] W3Schools — CSS Button Hover Effects — https://www.w3schools.com/css/css3_buttons_hover.asp

📝 변경 이력 (Change history)

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

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