.option {
  display: block;
  margin: 0.5rem 0;
  padding: 0.6rem 0.8rem;
  border: 1px solid #bbb;
  border-radius: 6px;
  cursor: pointer;
}

#quiz-progress {
  font-weight: bold;
}

#quiz-result table {
  border-collapse: collapse;
  margin: 0.5rem 0 1rem;
}

#quiz-result th,
#quiz-result td {
  border: 1px solid #bbb;
  padding: 0.3rem 0.6rem;
  text-align: left;
}

#quiz-result article {
  margin: 1rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #ddd;
}