button{width:90%;padding:15px;margin:10px auto;display:block;border-radius:30px;border:1px solid #000;background:#fdfcfb;cursor:pointer;font-size:18px}button:hover{background:#fff;box-shadow:0 4px 6px rgba(0,0,0,.1)}.question{display:none}.question.active{display:block}