video-autoplay.css

.i-amphtml-video-mask {
  display: block;
  z-index: 1;
  appearance: none;
  background: transparent;
  border: none;
}


/**
 * Animated equalizer icon for muted autoplaying videos.
 *
 * The equalizer icon is shown in the following scenarios:
 *  1. when the `controls` attribute is set OR
 *  2. the video is inside an `<amp-story>` element.
 *
 * Neither applies if the video is tagged with the `noaudio` attribute, in which
 * case the icon is never displayed.
 */

.amp-video-eq {
  display: none;
}

amp-video[controls] .amp-video-eq,
.i-amphtml-video-interface:not(amp-video) .amp-video-eq,
amp-story .amp-video-eq {
  display: flex;
}

[noaudio] .amp-video-eq {
  display: none !important;
}

.amp-video-eq {
  /* Skip pointer events to catch click on parent. */
  pointer-events: none !important;
  align-items: flex-end;
  bottom: 7px;
  height: 12px;
  opacity: 0.8;
  overflow: hidden;
  position: absolute;
  right: 7px;
  width: 20px;
  z-index: 1;
}
.amp-video-eq-col {
  flex: 1;
  height: 100%;
  margin-right: 1px;
  position: relative;
}
.amp-video-eq-col div {
  animation-name: amp-video-eq-animation;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  animation-direction: alternate;
  background-color: #FAFAFA;
  height: 100%;
  position: absolute;
  width: 100%;
  will-change: transform;
}
.amp-video-eq-col div {
  animation-play-state: paused;
}
.amp-video-eq-play .amp-video-eq-col div {
  animation-play-state: running;
}
.amp-video-eq-1-1 {
  animation-duration: 0.3s;
  transform: translateY(60%);
}
.amp-video-eq-1-2 {
  animation-duration: 0.45s;
  transform: translateY(60%);
}
.amp-video-eq-2-1 {
  animation-duration: 0.5s;
  transform: translateY(30%);
}
.amp-video-eq-2-2 {
  animation-duration: 0.4s;
  transform: translateY(30%);
}
.amp-video-eq-3-1 {
  animation-duration: 0.3s;
  transform: translateY(70%);
}
.amp-video-eq-3-2 {
  animation-duration: 0.35s;
  transform: translateY(70%);
}
.amp-video-eq-4-1 {
  animation-duration: 0.4s;
  transform: translateY(50%);
}
.amp-video-eq-4-2 {
  animation-duration: 0.25s;
  transform: translateY(50%);
}
@keyframes amp-video-eq-animation {
  0% {transform: translateY(100%);}
  100% {transform: translateY(0);}
}