body {
  font-family: Arial;
  background: #0f172a;
  color: #e2e8f0;
  text-align: center;
}

input {
  padding: 10px;
  width: 200px;
}

button {
  padding: 10px;
  cursor: pointer;
}

.input-box {
  margin: 20px;
}

ul {
  list-style: none;
  padding: 0;
}