HTML <acronym> Tag

The <acronym> tag defines an acronym or abbreviation. To decipher an acronym, the global title attribute is used (displayed as a pop-up text prompt when you hover the mouse over an acronym).

acronym exemple
The <acronym> tag is a deprecated HTML tag and not supported in HTML5. Use the <abbr> tag instead.


The <acronym> tag comes in pairs. The content is written between the opening (<acronym>) and closing (</acronym>) tags.

Example of the HTML <acronym> tag:

<!DOCTYPE html>
    <title>Title of the document</title>
    <p>Hover the mouse cursor over acronym HTML</p>
    <acronym title="Hyper Text Markup Language">HTML</acronym>

In the following example, the HTML <abbr> tag is used instead of <acronym>. The browser renders the characters within the <abbr> tag as an abbreviation or an acronym.

Example of the HTML <abbr> tag:

<!DOCTYPE html>
    <title>Title of the document</title>
    <p><abbr title="Universal Resource Locator">URL</abbr> - This is a special form of designating an individual resource address on the Internet </p>

Default styling

The default styling of the <acronym> tag varies from one browser to another:

  • Opera, Firefox, Chrome style the content with a dotted underline. And, some other browsers not only add a dotted underline but also put it in small caps.


The <acronym> tag supports the Global Attributes and the Event Attributes.

How to style <acronym> tag?

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

Browser support

chrome edge firefox safari opera

Practice Your Knowledge

What is the function of the <acronym> tag in HTML?

Quiz Time: Test Your Skills!

Ready to challenge what you've learned? Dive into our interactive quizzes for a deeper understanding and a fun way to reinforce your knowledge.

Do you find this helpful?