div class

<div class="device-mockup" data-device="imac" data-orientation="portrait" data-color="black">
    <div class="device">
        <div class="screen">
            <!-- PUT CONTENTS HERE -->
        </div>
        <div class="button">
            <!-- You can hook the "home button" to some JavaScript events or just remove it -->
        </div>
    </div>
</div>