SVG Clip
by cleaver
HTML
<svg width="700" height="550">
<defs>
<clipPath id="shape">
<path d="M100,0 L700,0 L700,550 L0,550 Q0,275 200,0"></path>
</clipPath>
</defs>
<foreignObject clip-path="url(#shape)" width="100%" height="100%">
<div class="shaped"></div>
</foreignObject>
</svg>
CSS
.shaped {
background: url(http://www.e-architect.co.uk/images/jpgs/aberdeen/bon_accord_centre_tonyfreeman221207_04.jpg);
height: 384px;
width: 100%;
}