body {
  font-family: sans-serif;
  background: #000;
  color: #fff;
  margin: 0;
  padding: 20px;
  text-align: center;
}
.container {
  max-width: 600px;
  margin: auto;
}
button, input[type="text"], table {
  margin: 10px 0;
  padding: 10px;
  border-radius: 5px;
  border: none;
}
button {
  background: red;
  color: white;
  font-weight: bold;
  cursor: pointer;
}
input[type="text"] {
  width: 90%;
}
table {
  width: 100%;
  background: #111;
  border-collapse: collapse;
}
th, td {
  border: 1px solid #333;
  padding: 8px;
}
a {
  color: red;
  text-decoration: none;
}