.box {
      width: 200px;
      height: 200px;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      overflow: hidden;
  }

  .box .b {
      border-radius: 50%;
      border-left: 4px solid;
      border-right: 4px solid;
      border-top: 4px solid transparent !important;
      border-bottom: 4px solid transparent !important;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      animation: ro 2s infinite;
  }

  .box .b1 {
      border-color: #4A69BD;
      width: 120px;
      height: 120px;
  }

  .box .b2 {
      border-color: #F6B93B;
      width: 100px;
      height: 100px;
      animation-delay: 0.2s;
  }

  .box .b3 {
      border-color: #2ECC71;
      width: 80px;
      height: 80px;
      animation-delay: 0.4s;
  }

  .box .b4 {
      border-color: #34495E;
      width: 60px;
      height: 60px;
      animation-delay: 0.6s;
  }

  @keyframes ro {
      0% {
          transform: translate(-50%, -50%) rotate(0deg);
      }

      50% {
          transform: translate(-50%, -50%) rotate(-180deg);
      }

      100% {
          transform: translate(-50%, -50%) rotate(0deg);
      }
  }
/* for table popup */
  @import url('https://fonts.googleapis.com/css?family=Inconsolata');

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  .popupBody {
    background: rgb(11, 11, 20);
    font-family: 'Inconsolata', monospace;
    overflow: hidden;
  }
  
  @mixin arc($pos, $mg, $tp, $rg, $bt, $lf, $wd, $hg, $br, $btp, $brl, $anim) {
    position: $pos;
    margin: $mg;
    top: $tp;
    right: $rg;
    bottom: $bt;
    left: $lf;
    width: $wd;
    height: $hg;
    border-radius: $br;
    border-top: $btp;
    border-left: $brl;
    border-right: $brl;
    animation: $anim;
  }
  
  .arc {
    @include arc(absolute, auto, 0, 0, 0, 0, 100px, 100px, 50%, 2px solid rgb(255, 234, 41), 1px solid transparent, rt 2s infinite linear);
    &::before {
      @include arc(absolute, auto, 0, 0, 0, 0, 70px, 70px, 50%, 2px solid rgb(141, 41, 255), 1px solid transparent, rt 4s infinite linear reverse);
      content: "";
    }
    &::after {
      @include arc(absolute, auto, 0, 0, 0, 0, 0, 0, 50%, initial, initial, cw 1s infinite);
      content: "";
      background: rgb(255, 250, 250);
    }
  }
  
  h1 {
    position: absolute;
    height: 40px;
    margin: auto;
    top: 200px;
    left: 0;
    right: 0;
    bottom: 0;
    text-transform: uppercase;
    text-align: center;
    letter-spacing: 0.1em;
    font-size: 14px;
    font-weight: lighter;
    color: white;
    span {
      display: none;
    }
    &::after {
      animation: txt 5s infinite;
      content: "";
    }
  }
  
  @keyframes rt {
    100% {transform: rotate(360deg);}
  }
  
  @keyframes cw {
    0% {
      width: 0;
      height: 0;
    }
    75% {
      width: 40px;
      height: 40px;
    }
    100% {
      width: 0;
      height: 0;
    }
  }
  
  @keyframes txt {
    0% {
      content: "LOADING.";
    }
    50% {
      content: "LOADING..";
    }
    100% {
      content: "LOADING...";
    }
  }