#popup:order {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
}
#popup:order .t-popup__container {
  background: #fff;
  padding: 20px;
  max-width: 500px;
  width: 90%;
  border-radius: 10px;
}