*,
html,
body {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.loader {
  width: 100%;
  height: 100vh;
  position: relative;
  background: whitesmoke;
  z-index: 100;
  display: flex;
  justify-content: center;
  align-items: center;
}
.loader img {
  width: 80px;
  height: 80px;
  z-index: 1;
}
.spinner {
  position: absolute;
  width: 100px;
  height: 100px;
  border-radius: 50%;
}

.spinner::before,
.spinner::after {
  content: '';
  position: absolute;
  border-radius: inherit;
}

.spinner::before {
  width: 100%;
  height: 100%;
  background-image: -webkit-gradient(linear, left bottom, left top, from(#1e90ff), color-stop(50%, whitesmoke));
  background-image: linear-gradient(0deg, #1e90ff 0%, whitesmoke 50%);
  -webkit-animation: spin 0.5s infinite linear;
  animation: spin 0.5s infinite linear;
}

.spinner::after {
  width: 85%;
  height: 85%;
  background-color: whitesmoke;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

@-webkit-keyframes spin {
  to {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

@keyframes spin {
  to {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}