.accordion {
  background-color: #eee;
  color: #444;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 15px;
  transition: 0.4s;
}

.active, .accordion:hover {
  background-color: #ccc;
}

.panel {
  padding: 0 18px;
  background-color: white;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
}
.tbm-item .accordion::before {
  content: ">";
  margin-right: 10px;
}
.tbm-item .accordion.active::before {
  content: "v";
  margin-right: 10px;
}
.accordion {
  margin-bottom:4px;
}