html,
body {
  font-size: 62.5%;
}


.show {
  display: block!important;
}



/*  面板  */
h2 {
  color: #333;
  background-color: #f2f2f2;
  height: 3.33rem;
  line-height: 3.33rem;
  font-size: 1.16rem;
  margin: 0;
  cursor: pointer;
}
.son {
  background-color: #ffffff;
  font-size: 1.0rem;
  margin-left: 1.0rem;
  display: none;
}