This attribute defines whether the operator stretches to the size of the adjacent element or not. Possible values are true or false. This attribute is accepted by the <mo> tag only.
Syntax:
<element stretchy="true|false">
Attribute Values:
- true: This value defines the operator stretches to the size of the adjacent element.
- false: This value defines the operator stretches not to the size of the adjacent element.
The below example illustrates the stretchy Attribute:
Example:
<!DOCTYPE html>
<html>
<body style="text-align:center;">
<h1 style="color:green">
GeeksforGeeks
</h1>
<h3>HTML5 MathML stretchy Attribute</h3>
<math>
<mrow>
<mrow>
<msup>
<mi>x</mi>
<mn>2</mn>
</msup>
<mo stretchy="true">+</mo>
<msup>
<mi>y</mi>
<mn>2</mn>
</msup>
</mrow>
<mo stretchy="false">=</mo>
<msup>
<mi>z</mi>
<mn>2</mn>
</msup>
</mrow>
</math>
</body>
</html>
Output:

Supported Browsers: The browsers supported by stretchy attribute are listed below:
- Firefox