@charset "UTF-8";
.blank {
  border: 5px solid transparent;
  animation: blink 1s infinite;
}

.blank-radius {
  border-radius: 40px;
  border: 5px solid transparent;
  animation: blink 1s infinite;
}

@keyframes blink {
  0% {
    border-color: transparent;
  }
  50% {
    border-color: red;
  }
  100% {
    border-color: transparent;
  }
}
.req::after {
  content: "必須";
  color: red;
  font-weight: bold;
  font-size: 0.8em;
  margin-left: 0.25em;
}

  @media (max-width: 768px) {
      .blank-radius {
          border-radius: 60px;}
    }