body {
  padding: 5px;
}
.group {
  margin-top: 10px;
}
h1 {
  font-size: 1.5em;
  line-height: 1.5em;  
  margin: 0;
}
a {
  display: inline-block;
  font-size: 1em;
  line-height: 1.4em;
  border: 0px solid #999;
  padding: 2px 8px;
  margin: 4px 0;
  background-color: #eee
}