#alert-tooltip {
  width:100px;
  height:100px;
  padding:25px;
  position:fixed;
  top:48%;
  left:48%;
  border-radius:10px;
  font-size:50px;
}

#alert-tooltip.red {
  background-color: #f2dede;
  border: 1px solid #ebccd1;
  color: #a94442;
}

#alert-tooltip.green {
  background-color: #dff0d8;
  border: 1px solid #d6e9c6;
  color: #3c763d;
}