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HTML5 MathML open Attribute

  • Last Updated : 16 Nov, 2020

 This attribute holds the opening parentheses of any equation same as close attribute. This attribute is accepted by <mfenched>  tag.


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<element open="parentheses">

Attribute Value:

  • Parentheses: Holds the parentheses which will be used to open any equation.

Below example illustrate the open Attribute in HTML5 MathML:



<!DOCTYPE html>
    <title>HTML5 MathML open attribute</title>
        <h1 style="color:green">
        <h3>HTML5 MathML open attribute</h3>
            <mfenced open="{" close="}" separators="">


Supported Browsers: The browsers supported by HTML5 MathML open attribute are listed below:

  • Firefox

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