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title

HTML Styles

🎯 한 줄 통찰 (One-line insight)

The HTML style attribute adds inline styling to an element using the syntax style="property:value;", controlling color, font, size, and alignment. [S1]

🧠 핵심 개념 (Core concepts)

style attribute — used to add styles to an element such as color, font, and size. [S1]
Syntax — <tagname style="property:value;">, where the property is a CSS property and the value is a CSS value. [S1]
background-color — sets the background color of an element (or the whole page when set on <body>). [S1]
color — sets the text color. [S1]
font-family — sets the font of the text. [S1]
font-size — sets the size of the text. [S1]
text-align — sets the horizontal alignment of the text. [S1]

🧩 추출된 패턴 (Extracted patterns)

property:value; pairs — each declaration is a CSS property/value pair ending with a semicolon. [S1]
Page-wide vs. per-element — styling <body> affects the whole page; styling an individual element affects only it. [S1]
Relative sizing — font-size can use percentages (e.g. 300%, 160%). [S1]

📖 세부 내용 (Details)

The HTML Style Attribute Setting the style of an HTML element can be done with the style attribute. The HTML style attribute has the following syntax: [S1]

<tagname style="property:value;">

The property is a CSS property, and the value is a CSS value. [S1]

Background Color The CSS background-color property defines the background color for an HTML element. Set the background color for the whole page: [S1]

<body style="background-color:powderblue;">

<h1>This is a heading</h1>
<p>This is a paragraph.</p>

</body>

Set background color for two different elements: [S1]

<body>

<h1 style="background-color:powderblue;">This is a heading</h1>
<p style="background-color:tomato;">This is a paragraph.</p>

</body>

Text Color The CSS color property defines the text color for an HTML element: [S1]

<h1 style="color:blue;">This is a heading</h1>
<p style="color:red;">This is a paragraph.</p>

Fonts The CSS font-family property defines the font to be used for an HTML element: [S1]

<h1 style="font-family:verdana;">This is a heading</h1>
<p style="font-family:courier;">This is a paragraph.</p>

Text Size The CSS font-size property defines the text size for an HTML element: [S1]

<h1 style="font-size:300%;">This is a heading</h1>
<p style="font-size:160%;">This is a paragraph.</p>

Text Alignment The CSS text-align property defines the horizontal text alignment for an HTML element: [S1]

<h1 style="text-align:center;">Centered Heading</h1>
<p style="text-align:center;">Centered paragraph.</p>

Chapter Summary

Use the style attribute for styling HTML elements. [S1]
Use background-color for background color. [S1]
Use color for text colors. [S1]
Use font-family for text fonts. [S1]
Use font-size for text sizes. [S1]
Use text-align for text alignment. [S1]

🛠️ 적용 사례 (Applied in summary)

The examples above demonstrate inline styling applied directly to <body>, <h1>, and <p> elements — the simplest way to color, size, and align content without a separate stylesheet. No external project/commit applications found in the source.

💻 코드 패턴 (Code patterns)

Style attribute syntax (HTML):

<tagname style="property:value;">

Color, font, size, and alignment on a paragraph:

<p style="color:red; font-family:courier; font-size:160%; text-align:center;">Styled paragraph.</p>

Page-wide background color:

<body style="background-color:powderblue;">

⚖️ 모순 및 업데이트 (Contradictions & updates)

No contradictions found in the source. (The page teaches inline style as the introductory styling mechanism; CSS stylesheets are covered separately.) [S1]

✅ 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: 0.90
중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

상위/루트: HTML Tutorial
관련 개념: HTML Attributes, HTML Formatting, HTML Headings, HTML Basic
참조 맥락: Referenced whenever applying inline visual styling (color, font, size, alignment) to elements.

📚 출처 (Sources)

[S1] W3Schools — HTML Styles — https://www.w3schools.com/html/html_styles.asp

📝 변경 이력 (Change history)

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

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