table {
    border:2.5px solid black;
    border-radius: 20px;
    text-align: center;
    background-color: #70db70;
}

th {
  border:2.5px solid black;
  text-align: center;
  background-color: #70db70;
  border-radius: 10px;
}

td {
    border:2.5px solid red;
    text-align: center;
    background-color: #ffffff;
    border-radius: 75%;
}

td:hover {
    background-color: #70db70;
}