Hiệu ứng scroll + animation + menu trượt mượt

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Scoll</title>
    <!-- Latest compiled and minified CSS & JS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
    <script src="https://code.jquery.com/jquery.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" crossorigin="anonymous"></script>
    <script>
    	jQuery(document).ready(function($) {
    		$('a[href*="#"]:not([href="#"])').click(function(event) {
    			if(location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
                    var target = $(this.hash);
                    var target = target.length ? target : $('name=['+this.hash.slice(1)+']');
                    if(target.length) {
                        $('html,body').animate({
                            scrollTop: target.offset().top
                        },700);
                    }
                    return false;
                }
    		});
    	});
    </script>
</head>

<body>
    <header>
        <nav class="navbar navbar-default" role="navigation">
            <div class="container-fluid">
                <!-- Brand and toggle get grouped for better mobile display -->
                <div class="navbar-header">
                    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse">
                        <span class="sr-only">Toggle navigation</span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                    </button>
                    <a class="navbar-brand" href="#">Title</a>
                </div>
                <!-- Collect the nav links, forms, and other content for toggling -->
                <div class="collapse navbar-collapse navbar-ex1-collapse">
                    <ul class="nav navbar-nav">
                        <li class="active"><a href="#home1">Home 1</a></li>
                        <li><a href="#home2">Home 2</a></li>
                        <li><a href="#home3"">Home 3</a></li>
                    </ul>
                </div>
            </div>
        </nav>
    </header>
    <main>
    	<article id="home1">
    		<div class="card">
    			<img class="card-img-top" src="http://lorempixel.com/400/200/sports/1" alt="Card image cap">
    			<div class="card-block">
    				<h4 class="card-title">Card title</h4>
    				<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    				<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
    			</div>
    		</div>
    		<div class="card">
    			<div class="card-block">
    				<h4 class="card-title">Card title</h4>
    				<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    				<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
    			</div>
    			<img class="card-img-bottom" src="http://lorempixel.com/400/200/sports/2" alt="Card image cap">
    		</div>
    	</article>
    	<article id="home2">
    		<div class="card">
    			<img class="card-img-top" src="http://lorempixel.com/400/200/sports/3" alt="Card image cap">
    			<div class="card-block">
    				<h4 class="card-title">Card title</h4>
    				<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    				<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
    			</div>
    		</div>
    		<div class="card">
    			<div class="card-block">
    				<h4 class="card-title">Card title</h4>
    				<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    				<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
    			</div>
    			<img class="card-img-bottom" src="http://lorempixel.com/400/200/sports/4" alt="Card image cap">
    		</div>
    	</article>
    	<article id="home3">
    		<div class="card">
    			<img class="card-img-top" src="http://lorempixel.com/400/200/sports/5" alt="Card image cap">
    			<div class="card-block">
    				<h4 class="card-title">Card title</h4>
    				<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    				<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
    			</div>
    		</div>
    		<div class="card">
    			<div class="card-block">
    				<h4 class="card-title">Card title</h4>
    				<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    				<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
    			</div>
    			<img class="card-img-bottom" src="http://lorempixel.com/400/200/sports/6" alt="Card image cap">
    		</div>
    	</article>
    </main>
</body>
</html>

Last updated