.collapsible:after {
  content: '\02795';
  font-size: 13px;
  color: white;
  float: right;
  margin-left: 5px;
font-family: "Source Sans Pro";
}

.active:after {
  content: "\2796";
}
.content {
  padding: 0 18px;
  display: none;
  overflow: hidden;
  background-color: #f1f1f1;
max-height: 0;
 transition: max-height 0.2s ease-out;
font-family: "Source Sans Pro";
}

  .collapsible {
  background-color: #eee;
  color: #444;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 15px;
font-family: "Source Sans Pro";
}
  .active, .collapsible:hover {
  background-color: #ccc;
}