The <rt> element is used for pronunciation or explanation of ruby base text. 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 <rt> mean?
Pronunciation or explanation of ruby base text. 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.
The rt text annotates the preceding base character while the ruby element groups the two.
A working HTML example
Here is a small example you can place in an HTML page and inspect in your browser:
<section>
<p>Japanese reading: <ruby>山<rt>やま</rt></ruby></p>
</section>Reading the example
Find the <rt> part first. Notice which elements are around it and how its content or attributes are connected to those other elements.
In this example, <rt> appears alongside ruby, rp. 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 <rt> when you want to pronunciation or explanation of ruby base text. 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 ruby, rp. Check the nesting requirements before moving the element into a different location.
Try it yourself
Give another word a short pronunciation annotation.
Common Beginner Mistakes
- Keep pronunciation paired with the right character or word.
- Picking
<rt>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
<rt>helps pronunciation or explanation of ruby base text.- The rt text annotates the preceding base character while the ruby element groups the two.
- Start with meaningful markup, then add styling or scripting only when the page needs it.