#iq-test {
  max-width: 600px;
  margin: 30px auto;
  padding: 20px;
  background: #ffffff;
  font-family: Arial, sans-serif;
  border: 1px solid #ddd;
}

#answers button {
  width: 100%;
  margin: 6px 0;
  padding: 10px;
  background: #f7f7f7;
  border: 1px solid #ccc;
  cursor: pointer;
}

#answers button:hover {
  background: #ececec;
}