<a href="#">TIKLA</a>
<div>
    <span>W3TR</span>
</div>

a{display: inline-block; background: #00FF99; padding:20px; border-bottom:4px solid #00CC00; color:#00CC99; text-decoration:none; margin-bottom:20px;}
div{width:100px; height:100px; overflow:hidden; border: 1px solid black; position:absolute; left:10px; top:100px;}

$("a").click(function(){
  $("span").offsetParent().css("background-color", "red");
});