HTML <bdo> Tag

The <bdo> tag ("bidirectional override") sets the direction of text output from right to left. It is used mainly with languages where reading occurs from right to left (for example, Arabic).

The dir attribute is required option for the <bdo> tag. It defines the direction within the <bdo> tag. The dir attribute can take one of two values:


The content of the <bdo> element is being written between the opening (<bdo>) and the closing (</bdo>) tags.


<!DOCTYPE html>
    <title>Title of the document</title>
    <p>Text from left to right </p>
      <bdo dir="rtl">And this one, from right to left</bdo>.



Attribute Value Description
dir ltr
Defines the direction of the text from left to right or from right to left.

The <bdo> tag supports also the Global Attributes and the Event Attributes.

How to style <bdo> tag

Common properties to alter the visual weight/emphasis/size of text in <bdo> tag:?

  • CSS font-style property sets the style of the font. normal | italic | oblique | initial | inherit
  • CSS font-family property specifies a prioritized list of one or more font family names and/or generic family names for the selected element.
  • CSS font-size property sets the size of the font.
  • CSS font-weight property defines whether the font should be bold or thick. CSS text-transform Property controls text case and capitalization.
  • CSS text-decoration property specifies the decoration added to text, and is a shorthand property for text-decoration-line, text-decoration-color, text-decoration-style

Coloring text in <bdo> tag:

  • CSS color property describes the color of the text content and text decorations
  • CSS background-color property sets the background color of an element.

Text layout styles for <bdo> tag:

  • CSS text-indent property specifies the indentation of the first line in a text block.
  • CSS text-overflow property specifies how overflowed content that is not displayed should be signaled to the user.
  • CSS white-space property specifies how white-space inside an element is handled.
  • CSS word-break property specifies where the lines should be broken.

Other properties worth looking at for <bdo> tag

Browser support

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