* { box-sizing: border-box; }
$duration: 20s;

@-webkit-keyframes ticker {
  0% {
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    visibility: visible;
  }

  100% {
    -webkit-transform: translate3d(-100%, 0, 0);
    transform: translate3d(-100%, 0, 0);
  }
}

@keyframes infobanner {
  0% {
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    visibility: visible;
  }

  100% {
    -webkit-transform: translate3d(-100%, 0, 0);
    transform: translate3d(-100%, 0, 0);
  }
}

.infobanner-wrap {
  
  position: fixed;
  bottom: 0;
  width: 100%;
  overflow: hidden;
  height: 3rem;
  background-color: rgba(#000, 0.9); 
  padding-left: 100%;
  box-sizing: content-box;

  .infobanner {

    display: inline-block;
    height: 3rem;
    line-height: 3rem;  
    white-space: nowrap;
    padding-right: 100%;
    box-sizing: content-box;

    -webkit-animation-iteration-count: infinite; 
            animation-iteration-count: infinite;
    -webkit-animation-timing-function: linear;
            animation-timing-function: linear;
   -webkit-animation-name: ticker;
           animation-name: ticker;
    -webkit-animation-duration: $duration;
            animation-duration: $duration;

    &__item {

      display: inline-block;

      padding: 0 2rem;
      font-size: 2rem;
      color: white;   

    }

  }

}

:root{
  --offset: 20vw;
  --move-initial: calc(-25% + var(--offset));
  --move-final: calc(-50% + var(--offset));
}

.marquee {
  background: black;
  color: white;
  transition: all 0.5s;
  font: {
    family: sans-serif;
    size: 5vw;
    line-height: 60%;
    weight: bold;
  }
  text-transform: uppercase;
  overflow: hidden;
  &.running .marquee-inner{
    animation-play-state: running
  }