html{
  height:100%;
  width:100%;
  background: linear-gradient(to top, #07D600 5%, #2E5906 100%);
  font-family:monospace;
}
h2{
  text-align:center;
  font-size:40px;
}
table {
  border:5px solid #aa3333;
  border-radius:50px;
  padding:10px;
  margin:0 auto;
}
td{
  padding:5px;
  text-align:center;
  border:1px solid black;
  border-radius:50px;
}