#menu {
  width: 200px;
  font-size: 13px;
  font-family: Arial, Helvetica, sans-serif;
}
#menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
#menu li {
  margin-bottom: 5px;
}
#menu a {
    display: block;
    text-decoration: none;
    color: blue;
    border: 1px solid blue;
    line-height: 30px;
    padding-left: 10px;
}
#menu a:hover {
    font-weight: bold;
  }