Transparent Notch

Built by CopperCreekMedia in response to a question by lampshade on StackOverflow (http://stackoverflow.com/questions/18659926/creating-a-transparent-inner-notch)

by CopperCreekMedia

HTML

<div id="notched"></div>

CSS

#notched {
    width: 0px;
    height: 0px;
    border-right: 60px solid transparent;
    border-top: 60px solid #d35400;
    border-left: 60px solid #d35400;
    border-bottom: 60px solid #d35400;
}
body {
    background: #727272;
}