img {
  max-width: 100%;
  height: auto;
}

body {
  margin: 0;
  margin-top: 5%;
  font-family: Arial, Helvetica, sans-serif;
}

.topnav {
  overflow: hidden;
  background-color: #222;
  position: fixed;
  top: 0;
  width: 100%;
}

.topnav a {
  float: right;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #ddd; 
  color: black;
}

.topnav a.active {
  background-color: #3841bb;
  color: white;
}

.topnav p {
  float: left;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
  margin-top: 0;
  margin-bottom: 0;
  margin-left: 0;
  margin-right: 0;
  height:100%;
}

@media only screen and (max-width: 50em) {
    thead th:not(:first-child) {
        display: none;
    }

    td, th {
        display: block;
    }

    td[data-th]:before  {
        content: attr(data-th);
    }
}

th, td {
  padding: 20px;
}

a.special:link {
  color: blue;
}

a.special:visited {
  color: blue;
}