.si_whatsapp {
    position: fixed;
    bottom: 10px;
    height: 50px;
    width: 50px;
    background: #358631;
	border-radius:50%;
    display: block;
	padding-top:8px;
	padding-left:8px;
    overflow: hidden;
	z-index:9999;
}
.si_whatsapp.right{right: 60px;}
.si_whatsapp.left{left: 80px;}