JSFiddle - React, Tailwind, and code Playground

HTML

<a href="javascript:(void);" id="lnkP">show all children</a>
<a href="javascript:(void);" id="lnkC1">hide child 1</a>
<a href="javascript:(void);" id="lnkC2">hide child 2</a>

<div id="p" style="display:none;">
<div id="c1">child 1</div>
<div id="c2">child 1</div>
</div>

JavaScript

$("#lnkP").click(function(){
    $("#p").children().show();
});
$("#lnkC1").click(function(){
   $("#c1").hide(); 
});
$("#lnkC2").click(function(){
   $("#c2").hide(); 
});