<!DOCTYPE html>
<title>My Example</title>
<style>
.box {
border: 5px solid orange;
background: gold;
padding: 10px;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
$( function() {
$( "div" ).click( function() {
$( this ).removeClass( "box" );
});
</script>
<div class="box">
Click me...
</div>
