Live Demo: jQuery :submit Selector Select Button Type Submit

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<!doctype html>
<html lang="en">
<head>
<title>jQuery :submit Selector Select Button Type Submit</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
$(document).ready(function(){ 
    $( ":submit" ).css( "background", "orange" );
});
</script>
</head>
<body>
<h2>jQuery :submit Selector Select Button Type Submit</h2>  
<form action="#">
    <label>Your Subject</label>
    <input type="text" name="subject" placeholder="Enter your subject"><br><br>
    <label>Your Name</label>
    <input type="text" name="subject" placeholder="Enter your subject"><br><br>
    <button type="submit">Submit</button>
</form>
</body>
</html>              
​