.loader-wrapper {
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  /* background-color: #5ab0dd; */
  margin: 0;
  padding: 0;
}

.preloader {
  width:400px;
  height: 400px;
  background-color: skyblue;
  border-radius: 50%;
  position: relative;
  box-shadow: inset 0 0 30px 0 rgb(255 255 255), 0 4px 10px 0 rgb(255 255 255);
  overflow: hidden;
}

.preloader:before, .preloader:after{
  content:'';
  position: absolute;
  width:400px;
  height: 400px;
  top:-150px;
  background-color: #fff;
}

.preloader:before{
  border-radius: 45%;
  background:rgba(255,255,255,.7);
  animation:wave 5s linear infinite;
}

.preloader:after{
  border-radius: 35%;
  background:rgba(255,255,255,.3);
  animation:wave 5s linear infinite;
}

.preloader img {
  width: 200px;
  position: absolute;
  left: 100px;
  bottom: 170px;
}

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