.collapsible {
  background-color: #fff;
  color: #000;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  border: none;
  text-align: left;
  font-size: 15px;
  line-height: 100%;
  transition: background-color 0.25s ease,
			  color 0.25s ease;
}

.collapsible:focus {
	outline: none;
}

.collapsed, .collapsible:hover {
  background-color: #34357f;
  color: #fff;
}

.collapsible:after {
  content: '\002B';
  color: white;
  font-weight: bold;
  float: right;
  margin-left: 5px;
}

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

.collapsible-content {
  padding: 0 18px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
  background-color: #f1f1f1;
}