HTML Superscript: Using sup Tags

HTML Superscript: Main Tips

• The text between <sup> tags is converted to HTML superscript.
• HTML superscript occupies half the usual character space and has a raised baseline.
• You must include both opening and closing HTML superscript tags.
• The <sup> tag does not have specific attributes, but supports global ones.

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Using the sup Tag

By surrounding inline text with <sup> tags, you can make it look as superscript in HTML:

<p>The following is <sup>superscript</sup>.</p>

You should only use superscript in HTML for typographical reasons, such as:

• superior lettering
• ordinal numbers
• exponents

<!--This is superior lettering in French language:-->
  <p>1<sup>er</sup>,  N<sup>ième</sup>, XVI<sup>e</sup> siècle</p>
<!--These are ordinal numbers:-->
  <p>1<sup>st</sup>,  2<sup>nd</sup>, 3<sup>rd</sup></p>
<!--These are exponents:-->
  <p>2<sup>2</sup>, 3<sup>3</sup>, 5<sup>5</sup></p>

In other cases, use CSS styling properties instead of HTML superscript:

span {
    vertical-align: super;
    font-size: smaller;
}

Tip: learn how to add additional CSS modifications in the CSS Fonts tutorial.

Browser support

Chrome

All

Edge

All

Firefox

1+

IE

All

Opera

All

Safari

All

Mobile browser support

Chrome

All

Firefox

4+

Opera

All

Safari

All