.gist-simple .gist-simple-wrap {
  font-size: 16px;
  margin: 0;
  margin-bottom: 1em;
  padding: 8px;
  border: 1px solid #ddd;
  border-radius: 3px;
  color: #333;
  text-align: left;
  background: #fff;
}

.gist-simple-loading-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  margin: 0 auto;
  padding: 1.2em;
}
.gist-simple-loading-icon > i {
  display: inline-block;
  width: 0.25em;
  height: 0.25em;
  margin: 0 calc(0.25em / 2 * 1);
  border-radius: 50%;
  opacity: 0.2;
  background-color: currentColor;
  animation: gist-simple-loading-blink 1.4s infinite both;
}
.gist-simple-loading-icon > i:nth-child(2) {
  animation-delay: 0.2s;
}
.gist-simple-loading-icon > i:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes gist-simple-loading-blink {
  0%,
  100% {
    opacity: 0.2;
  }
  30% {
    opacity: 1;
  }
}