HTML <u> Element: Reference and Examples

The <u> element is used for show a non-textual annotation. You will run into it while reading other people’s HTML, and it is useful to know what job it does before copying the code.

What does <u> mean?

Show a non-textual annotation. The tag gives the browser a specific kind of content to work with. It is more helpful to choose a tag for its meaning than because of its default look.

Underlining can signal an annotation, such as a misspelling, not necessarily a link.

A working HTML example

Here is a small example you can place in an HTML page and inspect in your browser:

<section>
    <p>Check this spelling: <u>recieve</u> should be receive.</p>
</section>

Reading the example

Find the <u> part first. Notice which elements are around it and how its content or attributes are connected to those other elements.

In this example, <u> appears alongside other semantic markup. That context is often just as important as the element itself.

The browser builds its document from these relationships. Any CSS changes appearance, while interactive JavaScript behavior must be provided separately when the example includes it.

When should you use it?

Use <u> when you want to show a non-textual annotation. A sensible example of this on a real website is the markup shown above; it gives the browser and accessibility tools a clearer job to work with.

Common companions are nearby semantic elements. Check the nesting requirements before moving the element into a different location.

Try it yourself

Change the example content to something from your own website, then check the rendered page and the browser inspector.

Common Beginner Mistakes

• Do not underline ordinary text merely to make it look clickable.
• Picking <u> only because it looks a certain way instead of checking what it means.
• Forgetting to inspect the surrounding markup when an element does not behave as expected.

Key Takeaways

• <u> helps show a non-textual annotation.
• Underlining can signal an annotation, such as a misspelling, not necessarily a link.
• Start with meaningful markup, then add styling or scripting only when the page needs it.