index.md

---

title: href
slug: Web/MathML/Global_attributes/href
browser-compat: mathml.global_attributes.href

---

{{QuickLinksWithSubPages("/en-us/docs/Web/MathML/Global_attributes")}}{{Non-standard_header}}

The href global attribute creates a hyperlink on the MathML element pointing to the specified URL.

Example

<!-- Make this math equation a link to Wikipedia's article
     about the Pythagorean theorem. -->
<math href="https://en.wikipedia.org/wiki/Pythagorean_theorem">
  <mi>c</mi>
  <mo>=</mo>
  <!-- Make this square root a link to corresponding
       SageMath's calculation. -->
  <msqrt href="https://sagecell.sagemath.org/?z=eJwrLiwq0TCOM9I2iTPSBAAeqgPO">
    <msup>
      <mn>3</mn>
      <mn>2</mn>
    </msup>
    <mo>+</mo>
    <msup>
      <mn>4</mn>
      <mn>2</mn>
    </msup>
  </msqrt>
  <mo>=</mo>
  <mn>5</mn>
</math>

Specifications

The href attribute is not defined in any browser-oriented specification but you can find a description in MathML 4.

Browser compatibility

{{Compat}}

See also

• All global attributes.