.example button {
  float: left;
  background-color: red;
  color: white;
  border: none;
  box-shadow: none;
  font-size: 17px;
  font-weight: 500;
  font-weight: 600;
  border-radius: 3px;
  padding: 15px 35px;
  margin: 26px 5px 0 5px;
  cursor: pointer; 
}
.example button:focus{
  outline: none; 
}
.example button:hover{
  background-color: #33DE23; 
}
.example button:active{
  background-color: #81ccee; 
}
.sweet-alert button
{
   background-color: #81ccee !important; 
}