bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/audio/audio-controls/styles.scss

@import "/imports/ui/stylesheets/variables/_all";

.container {
  display: flex;
  flex-flow: row;

  > * {
    margin: 0 $sm-padding-x;

    @include mq($small-only) {
      margin: 0 $sm-padding-y;
    }

    span:first-child {
      box-shadow: 0 2px 5px 0 rgb(0, 0, 0);
    }
  }

  > :first-child {
    margin-left: 0;
  }

  > :last-child {
    margin-right: 0;
  }
}

.button {
  &:focus {
    outline: none !important;
  }

  &.glow {
    animation: pulse 1s infinite ease-in;
    border-radius: 50%;
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 white;
  }
  70% {
    box-shadow: 0 0 0 0.5625rem transparent;
  }
  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}