.botonF1{
  width:60px;
  height:60px;
  border-radius:100%;
  background:#464775;
  right:0;
  bottom:0;
  position:absolute;
  margin-right:16px;
  margin-bottom:16px;
  border:none;
  outline:none;
  color:#FFF;
  font-size:25px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
  transition:.3s;  
}
span{
  transition:.5s;  
}
.botonF1:hover span{
  transform:rotate(360deg);
}
.botonF1:active{
  transform:scale(3.3);
  outline: none;
 
}