.modal-k {
  display: none; /* Hidden by default */
  position: fixed; /* Stay in place */
  z-index: 999; /* Sit on top */
  padding-top: 100px; /* Location of the box */
  left: 0;
  top: 0;
  width: 100%; /* Full width */
  height: 100%; /* Full height */
  overflow: auto; /* Enable scroll if needed */
  background-color: rgb(0, 0, 0); /* Fallback color */
  background-color: rgba(0, 0, 0, 0.4); /* Black w/ opacity */
}

.loader-k {
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -25px 0 0 -25px;
  border: 7px solid #f3f3f3;
  border-radius: 50%;
  border-top: 7px solid #cc0000;
  width: 40px;
  height: 40px;
  -webkit-animation: spin 2s linear infinite; /* Safari */
  animation: spin 2s linear infinite;
  z-index: 999;
}

@-webkit-keyframes spin {
  0% {
    -webkit-transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
  }
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}