JSFiddle - React, Tailwind, and code Playground

HTML

<div class="trig">trig<br><span>span</span>

</div>
<div class="menu">menu
    <br>
    <div class="inner">inside</div>
</div>

CSS

.menu {
    display: none;
}

JavaScript

$('.trig').click(function (e) {
    e.stopPropagation();
    $('.menu').show();
    $('body').click( function () {
        alert('boo');

    });
});