JSFiddle - React, Tailwind, and code Playground
HTML
<div id="a1">a1</div>
<div id="a2">a2</div>
<div id="a3">a3</div>
<div>
<a id="botao">altera</a>
</div>
CSS
#botao {
cursor: pointer;
}
JavaScript
$("#botao").click(function(){
$("#a3").insertBefore("#a1");
});