Sup is related to sub but writing style distinguishes it to other. This tag performs a similar function except that the content is displayed above the normal baseline level. Also start form start tag and end from end tag.<sup></sup>
How can use?
<p>This text contains <sup>superscript</sup> text.</p>
Inside the sup element, between the starting <sup> tag and the ending </sup> tag, code the inner HTML phrasing content.