.calendar_btn {
  width: 100%;
  margin: 10px 0 0 0;
  padding: 5px 0 5px 0;
  font-size: 16px;
  line-height: 1.5;
  display: inline-block;
  text-decoration: none;
  color: #fff;
  text-align: center;
  -webkit-border-radius: 3px;
  -moz-border-radius: 3px;
  border-radius: 3px;
  font-weight: bold;
  background: linear-gradient(to bottom, #6e9e6c, #546A57);
  box-shadow: 0 2px 2px rgba(0, 0, 0, 0.25);
  word-break: break-word;
}

@media screen and (max-width: 761px) {
  .calendar_btn {
    font-size: 12px;
  }
}

#calendar {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.pcnone {
  display: block;
}

@media screen and (min-width:769px) {
  .pcnone {
    display: none;
  }
}

.zanseki {
  display: block;
  color: #222;
  animation: flash 1s linear infinite;
}

@keyframes flash {

  0%,
  100% {
    opacity: 1;
  }

  33% {
    opacity: 0;
  }

  66% {
    opacity: 1;
  }
}