JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" class="nav-js-trigger">menu</a>
<div class="hidden">Hello</div>
<br />
<a href="#" class="nav-js-trigger">menu</a>
<div class="hidden">Hello</div>

CSS

.hidden {
    display:none;
}

.show-nav {
    background:yellow;
    display:block !important;
}

JavaScript

$(document.documentElement).on('click touchend', function(e) {
    var nav    = $(e.target).closest('.nav-js-trigger');
    var hidden = $(e.target).closest('.show-nav')
    
    if ( nav.length > 0 ) {
        $('.show-nav').not( nav.next().toggleClass('show-nav') ).removeClass('show-nav');
    } else if ( hidden.length === 0 ) {
        $('.show-nav').removeClass('show-nav');
    }
});