body {
  background-image: url('img/bg.jpg');
  background-repeat: no-repeat;
  background-position: center;
  background-attachment: fixed;
  background-size: cover;
  font-family: monospace;
  color: white;
}

 /* unvisited link */
a:link {
  color: white;
}

/* visited link */
a:visited {
  color: white;
}

/* mouse over link */
a:hover {
  color: white;
}

/* selected link */
a:active {
  color: white;
}

.black-transparent {
  background-color: black;
  opacity: 0.8;
}

.emph {
    font-weight: bold;
    color: black;
    background-color: white;
    opacity: 0.8;
}