.accordion_button {
  display: block;
  width: 100%;
  padding: 15px;
  border: none;
  outline: none;
  cursor: pointer;
  background: #0069d9;
  color: #fff;
  text-align: left;
  transition: background 0.2s;
}

.accordion_button::after {
  content: "\25be";
  float: right;
  transform: scale(1.5);
}

.accordion_button--active {
  background: #0069d9;
}

.accordion_button--active::after {
  content: "\25b4";
}

.accordion_content {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.2s;
  padding: 0 15px;
  font-family: sans-serif;
}