.circle{position:absolute;background:rgba(191,201,219,.1);width:600px;height:600px;-moz-border-radius:50%;-webkit-border-radius:50%;border-radius:50%;z-index:-1}.circle1{right:3%;top:-200px}.circle2{left:35%;top:300px;width:300px;height:300px;background:rgba(245,243,239,1)}.circle3{left:37%;top:36%;bottom:0;width:500px;height:500px;background:rgba(245,243,239,.35)}.circle4{bottom:0;left:17%;width:500px;height:500px;background:rgba(191,201,219,.1)}