JSFiddle - React, Tailwind, and code Playground

HTML

<p>
    surrounding text
</p>
<p id="iShouldBeInsideTheBox">
    This should be inside the box
</p>
<p>
    surrounding text
</p>
<p id="box">
    Some content in the box
</p>

<button id='toggle'>Toggle</button>

CSS

#box{
   border: 1px solid #000;        
}

JavaScript

function toggle(){
    if(jQuery('#box #iShouldBeInsideTheBox').length > 0)
        jQuery('#iShouldBeInsideTheBox').insertAfter('body p:eq(0)');
    else
        jQuery('#box').append(jQuery('#iShouldBeInsideTheBox'));
}

jQuery('#toggle').click(toggle);