CSS는 각 글자를 수동으로 색칠하지 않고도 그라데이션 텍스트를 만들 수 있습니까?

.rainbow {
  background-image: linear-gradient(
    to right,
    #f22,
    #f2f,
    #22f,
    #2ff,
    #2f2,
    #ff2,
    #f22
  );
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
}

<span class="rainbow">Rainbow text</span>

.rainbow2 {
  background-image: linear-gradient(
    to right,
    #E0F8F7,
    #585858,
    #fff
  );
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
}

<span class="rainbow2">No rainbow text</span>