.collapsible {
    background-color: #6f6f71;
    color: white;
    cursor: pointer;
    padding: 18px;
    width: 100%;
    border: none;
    text-align: justify;
    outline: none;
    font-size: 20px;
  }
  
  .active, .collapsible:hover {
    background-color: rgb(51, 206, 134);
  }
  
  .collapsible:after {
    content: '\002B';
    color: white;
    font-weight: bold;
    float: right;
    margin-left: 5px;
  }
  
  .active:after {
    content: "\2212";
  }
  
  .content {
    padding: 0 18px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
    background-color: #28a745;
  }