body {
  font-family: 'Open Sans', sans-serif;
  background-color: #f4f4f4;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

#quiz-container {
  background-color: #ffffff;
  padding: 30px;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  text-align: center;
}

h1 {
  color: #333;
}

#question {
  font-size: 18px;
  margin-bottom: 20px;
}

.option {
  display: block;
  background-color: #eee;
  padding: 15px;
  margin-bottom: 10px;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.option:hover {
  background-color: 1  #ddd;
}

#next {
  background-color: #007bff;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
}

#score {
  margin-top: 20px;
  font-size: 18px;
}