.btn {
    display: inline-block;
    height: 150px;
    width: 150px;
    margin: 25px;
    border-radius: 100%;
    background-color: #A0A0A0;
    font-size: 28px;
    color: inherit;
}
  
#outcomeAlert {
    font-size: 40px;
    color: inherit;
    text-shadow: 1px 1px 3px #f4f4f4;
}