.loader-wrap {
  position: relative;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}
.loader-wrap > .blur {
  position: absolute;
  z-index: 2;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background-color: rgba(47, 53, 66, 0.4);
  filter: blur(2px);
  -webkit-filter: blur(2px);
}
.loader-wrap > .loader {
  position: relative;
  z-index: 3;
  display: block;
  border: 3px solid #f3f3f3;
  border-radius: 50%;
  border-top: 4px solid #4834d4;
  width: 30px;
  height: 30px;
  -webkit-animation: spin 1s linear infinite;
  animation: spin .7s linear infinite;
}

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

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