JSFiddle - React, Tailwind, and code Playground
by learner001
HTML
<div class="change">
<div class="col-md-2">
<a href="#" class="add1"><h4>Add</h4></a>
</div>
<div class="col-md-10">
<div class="new_member_box_display" ></div>
</div>
</div>
<div id="addcontent1">Content for Add</div>
<!---<a href="#" class="add2"><h4>Subtract</h4></a>
<div id="addcontent2">Content for Subtract</div>-->
CSS
#addcontent1, #addcontent2 {display: none;}
JavaScript
$('[class^="add"]').on('click', function(e){
e.preventDefault();
var numb = this.className.replace('add', '');
$('[id^="addcontent"]').hide();
$('#addcontent' + numb).show();
});