button {
    margin-top: 20px;
    width: 200px;
    height: 50px;
    font-size: 20px;
    font-weight: bold;
    background-color: green;
    color: white;
    font-family: kristen ITC;
    border: 2px solid black;
    border-bottom-left-radius: 15px;
    border-bottom-right-radius: 15px;
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
   
}