button.accordion {
  width: 100%;
  background-color: whitesmoke;
  border: none;
  outline: none;
  text-align: left;
  padding: 15px 20px;
  font-size: 18px;
  color: #333;
  cursor: pointer;
  transition: background-color 0.2s linear;
}

button.accordion:after {
  font-family: FontAwesome;
  content: "\f150";
  font-family: "fontawesome";
  font-size: 18px;
  float: right;
}

button.accordion.is-open:after {
  content: "\f151";
}

button.accordion:hover,
button.accordion.is-open {
  background-color: #ddd;
}

.accordion-content {
  background-color: white;
  border-left: 1px solid whitesmoke;
  border-right: 1px solid whitesmoke;
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-in-out;
}