bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/loading-screen/styles.scss

/* Variables
 * ==========
 */
.background {
  position: fixed;
  display: flex;
  flex-flow: column;
  justify-content: center;
  width: 100%;
  height: 100%;
  background-color: var(--loader-bg);
  z-index: 4;
}

.message {
  font-size: var(--font-size-large);
  color: var(--color-white);
  text-align: center;
}

.spinner {
  width: 100%;
  text-align: center;
  height: 22px;
  margin-bottom: var(--md-padding-x);
}

.spinner > div {
  width: 18px;
  height: 18px;
  margin: 0 5px;
  background-color: var(--loader-bullet);
  border-radius: 100%;
  display: inline-block;

  :global(.animationsEnabled) & {
    animation: sk-bouncedelay 1.4s infinite ease-in-out both;
  }
}

.spinner .bounce1 {
  :global(.animationsEnabled) & {
    animation-delay: -0.32s;
  }
}

.spinner .bounce2 {
  :global(.animationsEnabled) & {
    animation-delay: -0.16s;
  }
}

@keyframes sk-bouncedelay {
  0%,
  80%,
  100% {
    transform: scale(0);
  }
  40% {
    transform: scale(1.0);
  }
}