body {
  font-family: Arial, sans-serif;
  background-color: #F5F7FF;
  display: flex;
  justify-content: center;
  padding: 50px;
}

.quiz-container {
  background-color: #F5FFF7;
  padding: 30px;
  border-radius: 10px;
  width: 100%;
  max-width: 500px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

#options button {
  display: block;
  margin: 10px 0;
  width: 100%;
  padding: 10px;
  font-size: 16px;
}

#next-btn {
  margin-top: 20px;
  padding: 10px 20px;
}

.hidden {
  display: none;
}

h1 {
	color: #FF0000;
	font-size: 30px;
	font-family: arial black;
}

button {
  padding: 10px 15px;
  margin: 5px;
  font-size: 16px;
  border: none;
  background-color: #A0A0A0; /*#6E98E0*/
  color: white;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background-color: #507cb9;
}

<style>
  form {
    max-width: 600px;
    margin: 0 auto; /* centers the form horizontally */
    padding: 20px;
    background: #f9f9f9;
    border-radius: 8px;
  }

  label {
    display: block;
    margin-top: 15px;
    font-weight: bold;
  }

  input, textarea, button {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    box-sizing: border-box;
  }

  button {
    background-color: #6E98E0;
    color: white;
    border: none;
    border-radius: 4px;
    margin-top: 20px;
    cursor: pointer;
  }

  button:hover {
    background-color: #5a82c5;
  }
</style>