jQuery toggleClass example
Toggle class name on click in jQuery
HTML
<body>
<p>I'm the first sentence.</p>
<p>I'm the second sentence.</p>
<p>I'm the third sentence.</p>
<p>I'm the fourth sentence.</p>
</body>
JavaScript
$(document).ready(function(){
$("p:contains(first)").css("background-color", "yellow");
$("p:contains(third)").css("background-color", "red");
});
//$(document.body).addClass('first');
//$(document.body).addClass('third');