body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #000; }

.field-validation-error {
  color: red;
  font-weight: bold; }

header {
  display: block;
  background-color: #eee;
  text-align: center;
  border-bottom: 2px solid #ccc;
  margin-bottom: 1em; }

.instructions {
  font-size: 16px;
  margin-bottom: 1.5em; }

h1 {
  margin-bottom: 1em; }