body {
    background-color: #000000;
    color: white;
    font-family: sans-serif;
    font-size: x-small;
    text-align: justify;
  }

.marco-fino {
  border: 1px solid white;
  margin: 10px;
  margin-top: 14px;
  width: *;
  padding:2px;
}

.contenido {
  border: 2px solid white;
  padding: 10px;
}

img {
  border: none;
  margin-bottom: -4px;
}

a {
    font-weight: bold;
    text-decoration: none;
    font-size: 11px;
    padding-top: 2px;
    padding-bottom: 2px;
    padding-left: 5px;
  }

a:link{  
   color: white;
   background-color: black;
  }
a:visited{  
   color: white;
   background-color: black;
  }
a:hover{
   background-color: white;
   color: black;
  }