input[type='checkbox'] {
    display: none;
  }

  .lbl-toggle {
    display: block;
  
    font-weight: bold;
    font-family: monospace;
    font-size: 1.2rem;
    text-transform: uppercase;
    text-align: center;
  
    padding: 1rem;
  
    color: #ffffff;
    background: #bdbdbd;
  
    cursor: pointer;
  
    border-radius: 7px;
    transition: all 0.25s ease-out;
  }
  
  .lbl-toggle:hover {
    color: #ffffff;
  }

  .lbl-toggle::before {
    content: ' ';
    display: inline-block;
  
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 5px solid currentColor;
  
    vertical-align: middle;
    margin-right: .7rem;
    transform: translateY(-2px);
  
    transition: transform .2s ease-out;
  }

  .collapsible-content .content-inner {
    background: rgba(189,189,189, 0.8);
    border-bottom: 1px solid rgba(151,151,151, 0.8);
  
    border-bottom-left-radius: 7px;
    border-bottom-right-radius: 7px;
    padding: .5rem 1rem;
  }

  .collapsible-content {
    max-height: 0px;
    overflow: hidden;
  
    transition: max-height .25s ease-in-out;
  }

  .toggle:checked + .lbl-toggle + .collapsible-content {
    max-height: 100vh;
  }

  .toggle:checked + .lbl-toggle::before {
    transform: rotate(90deg) translateX(-3px);
  }
  
  .toggle:checked + .lbl-toggle {
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
  }