body {
  max-width: 700px;
  margin: 32px auto;
  padding: 0 16px;
  font-family: sans-serif;
  line-height: 1.5;
}

form,
.result,
.error {
  margin-top: 24px;
}

label,
dt {
  display: block;
  font-weight: bold;
}

input,
button {
  padding: 7px;
  font: inherit;
}

input {
  width: min(400px, 90%);
}

.result,
.error {
  padding: 12px;
  border: 1px solid #888;
}

.affected,
.error {
  border-color: #b00020;
}

.not_affected {
  border-color: #18733c;
}

dd {
  margin: 0 0 8px;
  overflow-wrap: anywhere;
}

[hidden] {
  display: none;
}