.form_wrap form .action_btn .back {
  display: none; }

.form_wrap form dl dd input[type="text"].must:placeholder-shown {
  background: #FFD9D9; }

.error_ttl {
  background: #FFD9D9;
  padding: 16px 0 18px; }

.error_ttl p {
  text-align: center;
  font-size: 16px;
  font-weight: 700;
  color: #C7243A; }