body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; }

a {
  color: black;
  text-decoration: none; }
  a:hover {
    color: black;
    background-color: aqua;
    text-decoration: underline; }
  a:visited {
    color: black; }


.version {
  text-align: center;
  margin-top: 10px;
  color: grey; }
  .version a, .version span {
    font-size: 12px;
    color: grey; }