JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" onclick="toggle(this,'oud');return false">show div</a>  
<div id="oud">  
      <p>content<p>  
</div>

CSS

#oud {
    display:none;
}

JavaScript

toggle = function (a,oud) { 
    var div = document.getElementById (oud);  
    if (div.style.display != "block") {  
        div.style.display = "block";  
        a.innerHTML = "hide div";  
    }  
    else {  
        div.style.display = "none";  
        a.innerHTML = "show div";  
    }  
}