.accordion {
  background-color: #eee;
  
  cursor: pointer;
  padding: 10px;
  width: 100%;
  /*border: none;*/
  border: 1px solid #bbb;
  text-align: left;
  outline: none;
  font-size: 1em;
  transition: 0.5s;
}
       
.active, .accordion:hover {
  background-color: #ccc;
  color: #000000;
  /*border: none;*/
  border: 1px solid #ccc;
}

.accordion:after {
  content: '\002B'; /* Plus */
  color: #555;
  font-weight: bold;
  float: right;
  margin-left: 5px;
}

.active:after {
  content: "\2212"; /* Minus */
}

.panel {
  padding: 0 15px;
  /*background-color: white;*/
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease-out;
}