Home › HTML › HTML Formatting

HTML Formatting

Beginner ⏱ 6 min read Updated: Jul 2026
  • HTML formatting is used to style and structure text on web pages
  • It helps to make text bold, italic, underlined, or highlighted
  • It improves readability and user experience
  • It also helps in SEO by structuring important content
  • HTML formatting uses special tags like <b>, <i>, etc.

Why HTML Formatting is Important?

💡
HTML formatting improves readability, highlights important text, and helps search engines understand content structure for better SEO performance.

Common HTML Formatting Tags

<strong>

Makes text bold and shows importance.

<em>

Represents emphasized (italic) text.

<u>

Underlines the text.

<mark>

Highlights important text.

<small>

Displays smaller text size.

<sub>

Subscript text (e.g., H₂O).

<sup>

Superscript text (e.g., X²).

HTML Formatting Examples

Example 

<p><strong>Bold Text</strong></p>
<p><em>Italic Text</em></p>
<p><u>Underlined Text</u></p>
<p><mark>Highlighted Text</mark></p>
<p>H<sub>2</sub>O and X<sup>2</sup></p>
Result

Bold Text

Italic Text

Underlined Text

Highlighted Text

H2O and X2

SEO Benefits of HTML Formatting

✔ SEO Advantage: Proper HTML formatting helps search engines understand important keywords, improves content structure, and enhances user engagement.

Key Takeaways

  • Use <strong> for important text
  • Use <em> for emphasis
  • Use formatting tags to improve readability
  • Do not overuse formatting tags
  • Proper formatting improves SEO ranking
← Previous HTML Styles Next → HTML Quotations