body {
  font-family: Arial, sans-serif;
  background: #111;
  color: #fff;
  text-align: center;
}
form {
  background: #222;
  padding: 20px;
  display: inline-block;
  border-radius: 10px;
}
input, button {
  margin: 5px;
  padding: 10px;
  border-radius: 5px;
  border: none;
}
button {
  background: limegreen;
  color: white;
  cursor: pointer;
}
a {
  color: cyan;
  text-decoration: none;
}
table {
  margin: 20px auto;
  background: #222;
  border-collapse: collapse;
}
th, td {
  padding: 10px;
  border: 1px solid #333;
}