JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/dot-luv/jquery-ui.css">
        <DIV class="row">
        <DIV ID="c1">              
        <Input type="radio" name="testing" id="testing" VALUE="1">testing1
        </DIV>
        </DIV> 
        <DIV class="row">
        <DIV ID="c2">              
        <Input type="radio" name="testing" id="testing2" VALUE="2">testing2
        </DIV>
        </DIV>

CSS

.testing { background-color: red; }

JavaScript

$('.row div').mouseover(function(){
    $('#'+this.id).parent('div').addClass('testing');
});