.accordion {
  cursor: pointer;
  padding: 18px;
  width: 100%;
  border: none;
  outline: none;
  transition: 0.4s;
}


.accordion:after {
  content: '\002B';
  color: #fff;
  font-weight: bold;
  float: right;
  font-size:18px;
  margin-left: 5px;
}

.active:after {
  content: "\2212";
}

.panel {
  padding: 0 18px;
  display: none;
  background-color: transparent;
  overflow: hidden;
  text-align: left;
}