.collapsible {
    background-color: #777;
    color: white;
    cursor: pointer;
    padding: 18px;
    width: 100%;
    border: none;
    text-align: center;
    outline: none;
    color: black;
  }
  
  .strokeme {
    color: black;
    background-color: black;
    text-shadow: -1px -1px 0 yellow, 1px -1px 0 yellow, -1px 1px 0 yellow, 1px 1px 0 yellow;
  }

  .active, .collapsible:hover {
    background-color: #990;
  }
  
  .content {
    padding: 0 18px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
    background-color: #770;
  }

  body {
    display: flex;
    width: 100%;
    justify-content: center;
    font-size: 20px;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
  }