.collapsible {
    background-color: #777;
    font-weight: bold;
    color: white;
    cursor: pointer;
    padding: 18px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 15px;
    border-radius: 5px;
  }
  
  .active, .collapsible:hover {
    background-color: #555;
  }
  
  .collapsible:after {
    content:"+";
    color: white;
    font-weight: bold;
    float: right;
    margin-left: 5px;
  }
  
  .active:after {
    content:'-'
  }
  
  .content {
    padding: 0 18px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
    color: white;
    background-color: #373535;
  }
  
  a{
    font-size: 25px;
  }
  
  a:link {
  color: 	#CBC3E3;
  background-color: transparent;
  text-decoration: none;
  }
  
  a:visited {
    color: #CBC3E3;
    background-color: transparent;
    text-decoration: none;
  }
  
  a:hover {
    color: #14d8ef;
    background-color: transparent;
    text-decoration: underline;
  }
  
  a:active {
    color: red;
    background-color: transparent;
    text-decoration: underline;
  }
  
  body {
    background-image: url('https://i.imgur.com/u0678DH.png');
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
  }
  
  table,td{
    border:1px solid #cccccc;
    border-color: #373535;
  }
  th{
    border:1px solid #cccccc;
    border-color: #373535;
    color: black;
    background-color:DimGray;
  }
  p{
    color: #aaaaaa;
  }
  pre {
    background: #373535;
    color: white;
    padding: 1rem 2rem;
    border-radius: 1rem;
    width: fit-content;
    border: 1px solid #ddd;    
  }