#wel{margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  
  background-color: #F4D03F;
  position: relative;
  font-family: sans-serif;
  text-transform: uppercase;
  font-size: 15px;
  font-weight:bold;
  letter-spacing: 3px;
  overflow: hidden;
  background: linear-gradient(45deg,#FF0000,#990033, #0000FF);
  background-repeat: no-repeat;
  background-size: 100%;
  animation: animate 6s linear infinite;
  -webkit-background-clip: text;
  -webkit-text-fill-color: rgba(255, 255, 255, 0);
}

@keyframes animate {
  0% {
    background-position: -500%;
  }
  100% {
    background-position: 500%;
  }
}