.loader {
  color: #fff;
  position: fixed;
  box-sizing: border-box;
  left: -9999px;
  top: -9999px;
  width: 0;
  height: 0;
  overflow: hidden;
  z-index: 999999;
}
.loader:after, .loader:before {
  box-sizing: border-box;
}
.loader.is-active {
  background-color: rgba(0, 0, 0, 0.8);
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
}

@-webkit-keyframes rotation {
  from {
    transform: rotate(0);
    -webkit-transform: rotate(0);
  }
  to {
    transform: rotate(359deg);
    -webkit-transform: rotate(359deg);
  }
}
@keyframes blink {
  from {
    opacity: 0.5;
  }
  to {
    opacity: 1;
  }
}
@keyframes rotation {
  from {
    transform: rotate(0);
    -webkit-transform: rotate(0);
  }
  to {
    transform: rotate(359deg);
    -webkit-transform: rotate(359deg);
  }
}
@keyframes blink {
  from {
    opacity: 0.5;
  }
  to {
    opacity: 1;
  }
}
.loader[data-text]:before {
  position: fixed;
  left: 0;
  top: 50%;
  color: currentColor;
  text-align: center;
  width: 100%;
  font-size: 14px;
}
.loader[data-text='']:before {
  content: "Loading";
}
.loader[data-text]:not([data-text='']):before {
  content: attr(data-text);
}
.loader[data-text][data-blink]:before {
  animation: blink 1s linear infinite alternate;
  -webkit-animation: blink 1s linear infinite alternate;
}

.loader-default[data-text]:before {
  top: calc(50% - 63px);
}
.loader-default:after {
  content: "";
  position: fixed;
  width: 48px;
  height: 48px;
  border: solid 8px #fff;
  border-left-color: transparent;
  border-radius: 50%;
  top: calc(50% - 24px);
  left: calc(50% - 24px);
  animation: rotation 1s linear infinite;
  -webkit-animation: rotation 1s linear infinite;
}