.invisible {
  visibility: hidden;
}

.ch-small-loader {
  position: relative;
  left: 50%;
  margin-left: -15px;
  border: 6px solid #f3f3f3;
  border-radius: 50%;
  border-top: 6px solid gray;
  width: 15px;
  height: 15px;
  -webkit-animation: spin .4s linear infinite;
  animation: spin .4s linear infinite;
  box-sizing: unset;
}

.ch-smaller-loader {
  border: 4px solid #f3f3f3;
  border-radius: 50%;
  border-top: 4px solid gray;
  width: 12px;
  height: 12px;
  -webkit-animation: spin .4s linear infinite;
  animation: spin .4s linear infinite;
  box-sizing: unset;
}

/* Safari */
@-webkit-keyframes spin {
  0% { -webkit-transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); }
}

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

  /** Loading dots**/
.loading-dots {
    color: white;
    text-align: center;}


  /* loading dots */
  .loading-dots {
    text-align: left;
    font-size: 2.8em;
    display: flex;
    height: 10px;
    align-items: flex-end;
  }
  .loading-dots:after {
    content: ' .';
    color: #555;
    animation: dots 1s steps(5, end) infinite;}

  @keyframes dots {
    0%, 20% {
      color: rgba(0,0,0,0);
      text-shadow:
        .25em 0 0 rgba(0,0,0,0),
        .5em 0 0 rgba(0,0,0,0);}
    40% {
      color: #555;
      text-shadow:
        .25em 0 0 rgba(0,0,0,0),
        .5em 0 0 rgba(0,0,0,0);}
    60% {
      text-shadow:
        .25em 0 0 #555,
        .5em 0 0 rgba(0,0,0,0);}
    80%, 100% {
      text-shadow:
        .25em 0 0 #555,
        .5em 0 0 #555;}}


  /** Loader **/

  .ch-roller {
    display: inline-block;
    position: relative;
    width: 80px;
    height: 80px;
  }
  .ch-roller div {
    animation: ch-roller 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    transform-origin: 40px 40px;
  }
  .ch-roller div:after {
    content: " ";
    display: block;
    position: absolute;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #34C290;
    margin: -4px 0 0 -4px;
  }
  .ch-roller div:nth-child(1) {
    animation-delay: -0.036s;
  }
  .ch-roller div:nth-child(1):after {
    top: 63px;
    left: 63px;
  }
  .ch-roller div:nth-child(2) {
    animation-delay: -0.072s;
  }
  .ch-roller div:nth-child(2):after {
    top: 68px;
    left: 56px;
  }
  .ch-roller div:nth-child(3) {
    animation-delay: -0.108s;
  }
  .ch-roller div:nth-child(3):after {
    top: 71px;
    left: 48px;
  }
  .ch-roller div:nth-child(4) {
    animation-delay: -0.144s;
  }
  .ch-roller div:nth-child(4):after {
    top: 72px;
    left: 40px;
  }
  .ch-roller div:nth-child(5) {
    animation-delay: -0.18s;
  }
  .ch-roller div:nth-child(5):after {
    top: 71px;
    left: 32px;
  }
  .ch-roller div:nth-child(6) {
    animation-delay: -0.216s;
  }
  .ch-roller div:nth-child(6):after {
    top: 68px;
    left: 24px;
  }
  .ch-roller div:nth-child(7) {
    animation-delay: -0.252s;
  }
  .ch-roller div:nth-child(7):after {
    top: 63px;
    left: 17px;
  }
  .ch-roller div:nth-child(8) {
    animation-delay: -0.288s;
  }
  .ch-roller div:nth-child(8):after {
    top: 56px;
    left: 12px;
  }
  @keyframes ch-roller {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }