body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
  }
  
  .quiz-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
  }
  
  h1 {
    margin-bottom: 20px;
  }
  
  #question {
    margin-bottom: 20px;
    font-weight: bold;
  }
  
  .choice-container {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
  }
  
  input[type="checkbox"] {
    margin-right: 10px;
  }
  
  #start-btn {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 50%;
  }
  
  #submit-btn {
    display: none;
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }
  
  #timer {
    font-weight: bold;
    margin-top: 20px;
  }
  #refresh-btn{
    /* Mobile responsive css is in style.css file */
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 25%;
  }
  #timehead{
    display: none;
  }
  .instructions{
    background-color: white;
    justify-content: center;
    text-align: center;
  }
  .instructions ul li {
    list-style-type: none;
    justify-content: center;
    text-align: center;
    color: red;
    background-color: white;
    font-size: smaller;
  }