JSFiddle - React, Tailwind, and code Playground

HTML

<input type="button" value="click" onclick="showDiv();" />

        <div id="show">
            <p>it is okay it is okay it is okay it is okay it is okay it is okay it is okay it is okay</p>
        </div>

JavaScript

var bool = 0;
            function showDiv(){
                if(bool==1){
                    bool=0;
                    document.getElementById('show').style.visibility = "hidden";
                }else if(bool==0){
                    bool=1;
                    document.getElementById('show').style.visibility = "visible";
                }
            }