HTML5 rt Tag

Last Updated : 11 Jul, 2025

The <rt> tag in HTML is used to define the explanation of the ruby annotation which is a small text, attached with the main text. Such kind of annotation is used in Japanese publications. This tag is new in HTML5.

Syntax:

<rt> Explanation... </rt>

Example 1: This example describes <rt> tag within <ruby> tag.

HTML

<!DOCTYPE html>
<html>

        <body>

        <h1>GeeksforGeeks</h1>
        <h2>&lt;rt&gt; Tag</h2>
        <ruby>
            <!-- html rt tag is used here -->
            GFG<rt>GeeksforGeeks</rt>
        </ruby>
            
        </body>

</html>

Output:

Example 2: This example does not contain <ruby> tag.

HTML

<!DOCTYPE html>
<html>

<head>
    <title>rt tag</title>
    <style>
        body {
            text-align: center;
        }

        h1 {
            color: green;
        }
    </style>
</head>

<body>
    <h1>GeeksforGeeks</h1>
    <h2>&lt;rt&gt; Tag</h2>
    <rt>GeeksforGeeks Contents</rt>
</body>

</html>