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HTML <bdo> Element: Reference and Examples

Learn <bdo> element reference with a clear explanation, practical HTML markup, a walkthrough and common mistakes to avoid.

1 views Published Oct 19, 2026 Updated Oct 19, 2026 Admin

You might see <bdo> Element reference while reading someone else’s HTML, or need it while building a page of your own. Instead of memorizing a definition, look at a working example and see when the element makes sense.

The Idea in Plain English


Overrides the display direction of its contents. Use it when direction must be forced, not as a normal text-alignment trick.

For a reference page, pay attention to where the element is allowed, whether it needs a closing tag, and what other elements it can contain.

A Working Example


Read the sample once before copying it. Notice the element names and attribute values, then compare them with the explanation below.

<p><bdo dir="rtl">ABC 123</bdo></p>

What Each Part Does


  • The bdo element explicitly overrides writing direction.
  • A paragraph keeps one idea together as readable text.

The text is displayed using an explicit right-to-left ordering.

Try It Yourself


Try replacing the example content with your own while keeping the valid HTML structure.

Common Beginner Mistakes


  • Applying bdo to entire multilingual paragraphs instead of using dir or bdi as needed.
  • Changing several parts of the example at once, making it difficult to see which part caused a different result.
  • Choosing a tag only because its default appearance looks right, without checking whether it describes the content correctly.

Key Takeaways


  • Overrides the display direction of its contents. Use it when direction must be forced, not as a normal text-alignment trick.
  • The text is displayed using an explicit right-to-left ordering.
  • Test the markup in a browser, and check accessibility and real-world behavior where relevant.
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