HTML provides several tags for text formatting. These tags help you make text bold, italic, underlined, highlighted, and more.
HTML Formatting
Example
<b>Bold text</b>
<strong>Important text</strong>
<i>Italic text</i>
<em>Emphasized text</em>
<small>Smaller text</small>
<mark>Highlighted text</mark>
<del>Deleted text</del>
<ins>Inserted text</ins>
<sup>Superscript text</sup>
<sub>Subscript text</sub>
Output in Browser
Bold text
Important text
Italic text
Emphasized text
Smaller text
Highlighted text
Deleted text
Inserted text
H2O → Subscript
25 = 32 → Superscript
Tip: Use <strong> and <em> instead of <b> and <i> for better accessibility and SEO, because they add semantic meaning.