.polygon{
background-color:#000;
shape-outside:polygon(200px 0,400px 200px,200px 400px,0px 200px);
-webkit-clip-path:polygon(200px 0,400px 200px,200px 400px,0px 200px);
}

<div><img src=”images/70.jpg” width=”400″ height=”400″ /></div>