index.css

.news-ticker {
  font-size: 24px;
  height: 88px;
  background-color: #000;
  color: #fff;
  overflow: hidden;
  white-space: nowrap;
}

.news-ticker__label {
  display: inline-block;
  width: 168px;
  padding: 10px 25px;
  text-align: right;
  background-color: #000;
  z-index: 1000;
  position: relative;
  vertical-align: middle;
  white-space: normal;
}

.news-ticker__label:before {
  content: '';
  border-right: 1px solid #fff;
  position: absolute;
  top: 5px;
  bottom: 5px;
  right: 0;
}

.news-ticker__label:after {
  content: '';
  background: linear-gradient(to right, rgba(0,0,0,0.85) 0%,rgba(0,0,0,0) 100%);
  width: 40px;
  display: block;
  position: absolute;
  left: calc(100% + 2px);
  top: 0;
  bottom: 0;
}

.news-ticker__slider {
  display: inline-block;
  height: 100%;
  padding-top: 16px;
  padding-bottom: 16px;
  position: relative;
  vertical-align: middle;
  transition: left 0.6s ease;
  left: 0;
}

.news-ticker__slider > * {
  display: inline-block;
  padding: 0 30px;
  width: 630px;
  white-space: normal;
  vertical-align: top;
}