body{font-family:'Roboto',sans-serif;display:flex;justify-content:center;align-items:center;min-height:100vh;margin:0}#quiz-container{width:600px;padding:20px;border:1px solid #ccc;border-radius:5px}.question{margin-bottom:10px;display:block}.question label{display:flex;align-items:flex-start}.question input[type="checkbox"]{margin-right:10px}button{background-color:#cd2d59;color:#fff;padding:10px 20px;border:none;border-radius:18px;cursor:pointer;font-size:16px;margin-top:20px}.modal{display:none;position:fixed;z-index:1;left:0;top:0;width:100%;height:100%;overflow:auto;background-color:rgb(0 0 0 / .4)}.modal-content{background-color:#fefefe;margin:15% auto;padding:20px;border:1px solid #888;width:80%}.close{color:#aaa;float:right;font-size:28px;font-weight:700}.close:hover,.close:focus{color:#000;text-decoration:none;cursor:pointer}