<div class="classic-4"></div>

[class*=classic]:before {
  content:"Loading...";
}

.classic-4 {
  display: inline-block;
  font-weight: bold;
  font-family: monospace;
  font-size: 70px;
  clip-path: inset(0 3ch 0 0);
  animation: c4 1s  infinite;
}
@keyframes c4 {to{clip-path: inset(0 0 0 0)}}


body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-content: center;
}