.qa_question {
  margin-top: 40px;
}

.qa_q {
  color: #9999ff;
  font-size: 300%;
  font-weight: bold;
  margin-right: 20px;
}

.qa_a {
  color: #ff9999;
  font-size: 300%;
  font-weight: bold;
  margin-right: 20px;
}

.footer_button {
  margin: 0 auto;
  padding: 5px 0;
  width: 100%;
  overflow: hidden;
  position: fixed;
  bottom: 0;
  left:0;
  background: rgba(238,238,238, 0.7);
  z-index: 999999;
  text-align:center;
  display:none;
}


@media (max-width: 767px) {
  .footer_button {
    display: table;
  }
}