body {
  font-family: sans-serif;
  margin: 24px;
  max-width: 1000px;
  color: #222;
}

.intro {
  max-width: 760px;
}

h2 {
  font-size: 18px;
}

.cases {
  border-collapse: collapse;
}

.cases th,
.cases td {
  border-bottom: 1px solid #ddd;
  padding: 6px 16px 6px 0;
  text-align: left;
}

.cases tr.current td {
  background: #fff4d6;
}

#result {
  border: 1px solid #ddd;
  border-radius: 4px;
  margin: 16px 0 24px;
  max-width: 760px;
  padding: 0 16px 4px;
}

#container form {
  min-height: 36px;
}

#container input {
  font-size: 16px;
  padding: 6px 8px;
  width: 240px;
}

.status {
  margin-top: 10px;
  font-family: monospace;
  white-space: pre-wrap;
}

.status.ok {
  color: #1d7f37;
}

.status.bad {
  color: #c0292b;
}