.loader-container{
    position:fixed;
    top:0;
    left:0;
    height:100vh;
    width:100%;
    background:#f9f9f9;
    z-index:9999;
    display:flex;
    justify-content:center;
    align-items:center;
}

.loader {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: inline-block;
    border-top: 6px solid #2f55a7;
    border-right: 6px solid transparent;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
  }

  .loader::after {
    content: '';  
    box-sizing: border-box;
    position: absolute;
    left: 0;
    top: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border-bottom: 6px solid #2f55a7;
    border-left: 6px solid transparent;
  }
  @keyframes rotation {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }