.loading_container {
  height: 100%;
  width: 100%;
  /*100%覆蓋網頁內容, 避免user在loading時進行其他操作*/
  position: fixed;
  z-index: 999999;
  /*須大於網頁內容*/
  top: 0;
  left: 0;
  display: block;
  background: #000;
  opacity: 0.6;
  text-align: center;
}

.loading_content {
  position: relative;
  vertical-align: middle;
  text-align: center;
  margin: 0 auto;
  margin-top: 50vh;
  z-index: 999999;
}
.loading {
  height: 5rem;
  width: 5rem;
  border-radius: 50%;
  border: 10px solid #749a7e;
  border-top-color: #002147;
  box-sizing: border-box;
  background: transparent;
  margin: auto;
  animation: loading 1s linear infinite;
}
.loading_content .loading_word {
  color: white;
}
@keyframes loading {
  0% {
    transform: rotate(0deg);
  }
  0% {
    transform: rotate(360deg);
  }
}