Id Selector in JQuery

!DOCTYPE html>
<html>
    <head>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
        <script>
$(document).ready(function(){
    $("button").click(function(){
        $("#para").hide();
    });
});
</script>
    </head>
    <body>
        <h2>c# corner</h2>
        <p id="para">c-sharpcorner.com</p>
        <button>Click me</button>
    </body>
</html>