JSFiddle - React, Tailwind, and code Playground
HTML
<a href="path" id="form1:ctlName">your link</a>
JavaScript
$("[id='form1:ctlName']").css("border","1px solid red");
<a href="path" id="form1:ctlName">your link</a>
$("[id='form1:ctlName']").css("border","1px solid red");