table {
  font-family: arial, sans-serif;
  width: 100%;
  background-color:lightgreen;
}

td {
  border: 1px solid red;
  padding: 8px;
  border-radius:100px;
  text-align:center;
  background-color:white;
}
th {
    border: 1px solid black;
    padding: 8px;
    text-align:center;
    background-color:lightgreen;
    border-radius:8px;
}
td:hover {
    background-color:#6cafb6;
}