1. html
  2. /tags
  3. /strong



The <strong> element marks content with heightened significance in a web document. Typically rendered as bold text in browsers, it indicates the importance, seriousness, or urgency of the enclosed content.

Examples and Usage

Web content often contains portions that need to stand out due to their importance, seriousness, or urgency. The HTML Living Standard Specification underscores the role of the <strong> element in achieving this, setting it apart from other tags that might simply alter appearance without conveying emphasis.

Consider the following cautionary note in a server maintenance guide:

During server maintenance, <strong>ensure the main power supply is switched off</strong>.

In this context, the <strong> element emphasizes a critical step in a server maintenance guide. Such usages demonstrate the tag's ability to mark content areas requiring special attention, either due to their crucial importance or the urgency they carry.

Attribute Breakdown

The <strong> element doesn't have any specific attributes; it inherits global attributes common to all HTML elements.

Accessibility Aspects

The <strong> element, in terms of ARIA roles, defaults to a role labeled strong. However, it's advisable to avoid explicitly setting this role as the element inherently possesses it. In addition, the element supports global aria-* attributes, providing flexibility in denoting additional context or behaviors.

Associated Elements

  • <b>
  • <em>

Additional Notes

  • In contexts like headings, captions, or paragraphs, the <strong> element can differentiate the most vital information from content that's more detailed or secondary. For subheadings, however, elements like hgroup are more appropriate.

  • The <strong> element emphasizes the content's importance or seriousness, while the <b> element draws attention without indicating greater importance.

  • For decorative bold text, use the CSS font-weight property rather than relying on <strong> or <b> for styling.

  • While both <strong> and <em> can be nested to intensify their effect, the purpose behind using them should be semantically driven, focusing on the conveyed meaning.

Browser Compatibility

For a detailed breakdown of specific browser nuances and older version support refer to the first link in the Useful Resources below.

BrowserChromeEdgeSafariFirefoxOperaInternet Explorer

Useful Resources

Can I use HTML element: strong

The HTML Living Standard Specification: strong