.lds-ring {
    display: inline-block;
    position: relative;
    width: 80px;
    height: 80px;
    top: 30%;
  }
  .lds-ring div {
    box-sizing: border-box;
    display: block;
    position: absolute;
    width: 64px;
    height: 64px;
    margin: 8px;
    border: 8px solid rgb(80, 80, 80);
    border-radius: 50%;
    animation: lds-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    border-color: rgb(80, 80, 80) transparent transparent transparent;
  }
  .lds-ring div:nth-child(1) {
    animation-delay: -0.45s;
  }
  .lds-ring div:nth-child(2) {
    animation-delay: -0.3s;
  }
  .lds-ring div:nth-child(3) {
    animation-delay: -0.15s;
  }
  @keyframes lds-ring {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }

  .overlay{
      z-index:999999;
      position: fixed;
      top:0;
      bottom: 0;
      left: 0;
      right: 0;
      background-color: rgba(255,255,255,0.7);
      text-align: center;
  }