---
id: css-advanced-attribute-selectors
title: "CSS Advanced Attribute Selectors"
category: "Frontend"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["advanced attribute selector", "[attribute^=value]", "[attribute$=value]", "[attribute*=value]", "substring attribute selector"]
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", "selectors", "attributes"]
raw_sources: ["https://www.w3schools.com/css/css_attribute_selectors_advanced.asp"]
applied_in: []
github_commit: ""
---

# [[CSS Advanced Attribute Selectors]]

## 🎯 한 줄 통찰 (One-line insight)
The advanced attribute selectors match by substring position — `^=` for values that start with, `$=` for values that end with, and `*=` for values that contain a string — and combine with `input[type=...]` to style form controls. [S1]

## 🧠 핵심 개념 (Core concepts)
- **`[attribute^="value"]`** — selects elements with the specific attribute whose value **starts with** a specific value. [S1]
- **`[attribute$="value"]`** — selects elements whose attribute value **ends with** a specific value. [S1]
- **`[attribute*="value"]`** — selects elements whose attribute value **contains** a specific value (substring, anywhere). [S1]
- **Form styling use** — attribute selectors are commonly used to style form elements by their `type`, e.g. `input[type="text"]` and `input[type="button"]`. [S1]

## 🧩 추출된 패턴 (Extracted patterns)
- **Prefix match** — `^=` targets values beginning with a token (e.g. class names that start with `top`). [S1]
- **Suffix match** — `$=` targets values ending with a token (e.g. class names ending in `test`, or file extensions). [S1]
- **Substring match** — `*=` targets any value containing the token, the most permissive of the three. [S1]
- **Type-based form styling** — drive distinct styles for text vs. button inputs purely from their `type` attribute. [S1]

## 📖 세부 내용 (Details)
**`[attribute^="value"]` selector**
The `[attribute^="value"]` selector is used to select elements with the specific attribute whose value **starts with** a specific value. The following selects elements whose class starts with "top": [S1]
```css
[class^="top"] {
  background: yellow;
}
```

**`[attribute$="value"]` selector**
The `[attribute$="value"]` selector is used to select elements whose attribute value **ends with** a specific value. The following selects elements whose class ends with "test": [S1]
```css
[class$="test"] {
  background: yellow;
}
```

**`[attribute*="value"]` selector**
The `[attribute*="value"]` selector is used to select elements whose attribute value **contains** a specific value. The following selects elements whose class contains "te": [S1]
```css
[class*="te"] {
  background: yellow;
}
```

**Styling Forms With Attribute Selectors**
Attribute selectors can style form controls by their `type`. The following styles text inputs and button inputs differently: [S1]
```css
input[type="text"] {
  width: 150px;
  padding: 6px;
  margin-bottom: 10px;
  background-color: pink;
}

input[type="button"] {
  width: 100px;
  padding: 6px;
  background-color: lightgreen;
}
```

> Note: The full HTML markup for the form example is not shown in the fetched source — "Not found in source."

## 🛠️ 적용 사례 (Applied in summary)
The page's examples demonstrate the three substring selectors on `class` values and applying type-based attribute selectors to style form inputs. No external project/commit applications found in the source.

## 💻 코드 패턴 (Code patterns)
The three substring attribute-selector forms (language: CSS):
```css
[class^="top"]  { background: yellow; }   /* starts with */
[class$="test"] { background: yellow; }   /* ends with   */
[class*="te"]   { background: yellow; }   /* contains    */
```
Type-based form styling (language: CSS):
```css
input[type="text"]   { width: 150px; padding: 6px; margin-bottom: 10px; background-color: pink; }
input[type="button"] { width: 100px; padding: 6px; background-color: lightgreen; }
```

## ⚖️ 비교 및 선택 기준 (Comparison & decision criteria)
- **`^=` (starts with)** — use when matching a known prefix, e.g. a naming convention where related classes begin with the same token. [S1]
- **`$=` (ends with)** — use when matching a known suffix, e.g. classes ending in `test`. [S1]
- **`*=` (contains)** — use when the token may appear anywhere in the value; broadest match of the three. [S1]
- **vs. basic selectors** — these substring forms complement the basic `[attribute]`, `=`, `~=`, and `|=` selectors documented in [[CSS Attribute Selectors]], adding positional substring matching that the basic set lacks. [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 Attribute Selectors]], [[CSS Selectors]], [[CSS Styling Forms]]
- **참조 맥락:** Referenced when targeting elements by partial attribute values or styling form controls by their `type`.

## 📚 출처 (Sources)
- [S1] W3Schools — CSS Advanced Attribute Selectors — https://www.w3schools.com/css/css_attribute_selectors_advanced.asp

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