body {
  padding: 50px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}

a {
  color: #00B7FF;
}

input.ng-invalid {
  border: 1px solid red;
}

table tr:nth-child(4n-1) td:nth-child(n-1) {
    background: #dddddd;
}