.btn-group{height:70px}.btn-group,.btn-group .btn{position:relative;width:260px}.btn-group .btn{height:60px;line-height:60px;text-align:center;background:#6464f8;border-radius:30px;font-size:20px;color:#fff;cursor:pointer;top:0;z-index:1}.btn-group .btn:hover{opacity:.8}.btn-group .shadow{width:175px;height:60px;background:#9b9be8;border-radius:100px 100px 100px 100px;opacity:.68;position:absolute;bottom:-5px;left:42.5px;filter:blur(12px);z-index:0}