.fireworks-wrapper {
    position: absolute;
    width: 300px;
    height: 100px;
    overflow: hidden;
    background: #fff;
    left: 0rem;
    z-index: -1;
}

#fireworks {
  position: absolute;
  top: 0;
  left: 0;
  width: 200px;
  height: 50px;
  display: block;
  z-index: 1;
}

.tricolor {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  display: flex;
  z-index: 5;
}

.tricolor div {
  flex: 1;
}

#animation {
    width: 75px; position: relative;
    left: -1.5rem;
}