Edit fiddle - JSFiddle - React, Tailwind, and code Playground

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<h1>How it's meant to look</h1>
<div data-role="collapsible-set"><div data-role="collapsible" data-collapsed="true"> <h3>Section 1</h3></div><div data-role="collapsible"><h3>Section2</h3></div ><div data-role="collapsible"><h3>Section3</h3></div ></div>
<h1>How it actually looks</h1>
<div data-role="collapsible-set"><div data-role="collapsible" data-collapsed="true"> <h3>Section 1</h3></div></div>
<div data-role="collapsible-set"><div data-role="collapsible" data-collapsed="true"> <h3>Section 2</h3></div></div>
<div data-role="collapsible-set"><div data-role="collapsible" data-collapsed="true"> <h3>Section 3</h3></div></div>

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