<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style type="text/css">
.col {
border:solid 1px #eee;
200px;
}
</style>
<script src="../Scripts/jquery-1.10.2.min.js"></script>
<script type="text/javascript">
$(function(){
$("div").toggleClass("col");
})
</script>
</head>
<body>
<div class="col">123</div>
<div>345</div>
<div>456</div>
</body>
</html>
