.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
  }
  
  /* HTML: <div class="loader"></div> */
  .loader {
    width: 40px;
    aspect-ratio: 1;
    --c: no-repeat linear-gradient(#00c2ff 0 0);
    background:
        var(--c) 0 0,
        var(--c) 0 100%,
        var(--c) 50% 0,
        var(--c) 50% 100%,
        var(--c) 100% 0,
        var(--c) 100% 100%;
    background-size: 8px 50%;
    animation: l7-0 1s infinite;
    position: relative;
    overflow: hidden;
  }
  
  .loader:before {
    content: "";
    position: absolute;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #f37022;
    top: calc(50% - 4px);
    left: -8px;
    animation: inherit;
    animation-name: l7-1;
  }
  
  @keyframes l7-0 {
    16.67% {
        background-size: 8px 30%, 8px 30%, 8px 50%, 8px 50%, 8px 50%, 8px 50%
    }
  
    33.33% {
        background-size: 8px 30%, 8px 30%, 8px 30%, 8px 30%, 8px 50%, 8px 50%
    }
  
    50% {
        background-size: 8px 30%, 8px 30%, 8px 30%, 8px 30%, 8px 30%, 8px 30%
    }
  
    66.67% {
        background-size: 8px 50%, 8px 50%, 8px 30%, 8px 30%, 8px 30%, 8px 30%
    }
  
    83.33% {
        background-size: 8px 50%, 8px 50%, 8px 50%, 8px 50%, 8px 30%, 8px 30%
    }
  }
  
  @keyframes l7-1 {
    20% {
        left: 0px
    }
  
    40% {
        left: calc(50% - 4px)
    }
  
    60% {
        left: calc(100% - 8px)
    }
  
    80%,
    100% {
        left: 100%
    }
  }