.marquee { position: relative; width: 100vw; max-width: 100%; height: 200px; overflow-x: hidden; font-size: 60px; }
.track { position: absolute; white-space: nowrap; will-change: transform; animation: 32s linear 0s infinite normal none running marquee; }
@keyframes marquee { 
  0% { transform: translateX(0px); }
  100% { transform: translateX(-50%); }
}