body {
  background-color: #EEE; font-family: sans-serif;
}

h1 {
  border-bottom: dotted; padding-left: 10px; color:maroon;
}

.enlace {
  border: 0px solid green; margin: 10px;
}

.enlace address { /*url sin anchor*/
  font-family: courier;
  font-size: smaller;
  font-style: normal;
}

.volver {
  float: right;
  color: maroon;
}

a {
  display: block;
}