<div id="wrapper">

        <header id="header">

            <div class="wrapper">

                <h1>Header Section</h1>

            </div><!-- .wrapper -->

        </header>

        <section id="content">

            <div class="wrapper">

                <article id="primary-content">
                    
                    <h2>Content Section</h2>

                    <p>Praesent bibendum neque hendrerit turpis lacinia dignissim. Ut sed malesuada lectus. Aliquam sed lorem sit amet metus adipiscing suscipit. Sed porta nunc nec nibh dapibus semper. Aenean varius tortor non arcu pretium eget pharetra sapien fermentum. Mauris facilisis aliquet magna vel convallis. Pellentesque ut mi sed leo sagittis bibendum non sit amet mauris.</p>

                </article><!-- #primary-content -->

            </div><!-- .wrapper -->

        </section><!-- #content -->

        <footer id="footer">

            <p>Footer Section</p>

        </footer>

    </div><!-- #wrapper -->
html {margin:0;padding:0;}

body {
    margin:0;
    padding:0;
    color: #222;
    background: #eee;
}

h1 {
    padding: 30px 0 0;
    font-size: 18px;
    font-weight: bold;
    color: #fff;
}

h2 {
    padding: 20px 0 0;
    font-size: 18px;
    font-weight: bold;
    color: #333;
}

p {margin: 1em 0;}

#header, #content, #footer {position:relative;min-width:480px;}

.wrapper {
    position: relative;
    width: 460px;
    margin: 0 auto;
}

/* Header Section */
#header {
    z-index: 1000;
    background: #ccc;
    border-bottom: 8px solid #A59B9B;
    -webkit-box-shadow: 0 0 12px #000;
    box-shadow:         0 0 12px #000;
}

#header .wrapper {    
    height: 80px;
}

/* Content Section */
#content {clear: both;}

#content:before {
    content: "\0020";
    display: block;
    position: absolute;
    z-index: 800;
    top: 0;
    left: 50%;
    margin-left: -230px;
    width: 460px;
    height: 120px;
    -webkit-box-shadow: 0 0 12px #333;
    box-shadow:         0 0 12px #333;

    /* Rounded corners, browser-specific for compatibility. */
    -webkit-border-radius: 9px;
    -webkit-border-bottom-right-radius: 10px 150px;
    -webkit-border-bottom-left-radius:  10px 150px;
    -moz-border-radius: 9px;
    -moz-border-radius-bottomright: 10px 150px;
    -moz-border-radius-bottomleft:  10px 150px;

    /* CSS3 standard rounded corners */
    border-radius: 9px; /* Slightly larger border-radius than the note */
    border-bottom-right-radius: 10px 150px; /* Small x + big y = nice tapered shape */
    border-bottom-left-radius:  10px 150px; /* Ditto above */
}

#content .wrapper {
    z-index: 900;
    background: #fff;
    border-bottom: 15px solid #A59B9B;
}

#primary-content {
    padding: 10px 20px;
}

/* Footer Section */
#footer {text-align:center;}

External CSS

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External JavaScript

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