seniorHTML5
Explain the difference between <b> vs <strong> and <i> vs <em> in HTML5.
Updated Apr 28, 2026
Short answer
<b>/<i> are for visual style; <strong>/<em> are for semantic meaning and stress.
Deep explanation
In HTML5, <strong> indicates that its contents have strong importance or urgency. <em> indicates stress emphasis (changing the meaning of a sentence). <b> and <i> are now 'stylistic offsets'—used when you want text to look bold/italic without adding extra importance (e.g., keywords or technical terms).
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