body {
  background-color:#ffffff;
  color:#000000;
  max-width:60ex;
  text-align:justify;
  margin-left:auto;
  margin-right:auto;
}

hr {
  color:black;
  background-color:black;
  height:1px;
  border-width:0px;
}

ul li {
  list-style-type:square;
}

em {
  font-style:normal;
  letter-spacing:0.5ex;
}

a {
  text-decoration:none;
}

a:link {
  color:#ff8000;
}

a:visited {
  color:#ff8000;
}

a:active {
  color:#ff8000;
  text-decoration:underline;
}

.autor, .annotation {
  font-size:80%;
}