<h2>
  Turn your living room into
  <div class="mask">
    <span data-show>a theater.</span>
    <span>a gym.</span>
    <span>a concert hall.</span>
    <span>an arcade.</span>
  </div>
</h2>

:root {
  --offset: 6px;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

h2 {
  width: 980px;
  font-size: 100px;
  font-family: Helvetica;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: #1d1d1f;
}

.mask {
  height: 106px;
  position: relative;
  overflow: hidden;
  margin-top: var(--offset);
}

.mask span {
  display: block;
  box-sizing: border-box;
  position: absolute;
  top: 100px;
  padding-bottom: var(--offset);
  
  background-size: 100% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  background-repeat: no-repeat;
}

.mask span[data-show] {
  transform: translateY(-100%);
  transition: .5s transform ease-in-out;
}

.mask span[data-up] {
  transform: translateY(-200%);
  transition: .5s transform ease-in-out;
}

.mask span:nth-child(1) {
  background-image: linear-gradient(45deg, #0ecffe 50%, #07a6f1);
}

.mask span:nth-child(2) {
  background-image: linear-gradient(45deg, #18e198 50%, #0ec15d);
}

.mask span:nth-child(3) {
  background-image: linear-gradient(45deg, #8a7cfb 50%, #633e9c);
}

.mask span:nth-child(4) {
  background-image: linear-gradient(45deg, #fa7671 50%, #f45f7f);
}

setInterval(function () {
  const show = document.querySelector('span[data-show]')
  const next = show.nextElementSibling || document.querySelector('span:first-child')
  const up = document.querySelector('span[data-up]')
  
  if (up) {
    up.removeAttribute('data-up')
  }
  
  show.removeAttribute('data-show')
  show.setAttribute('data-up', '')
  
  next.setAttribute('data-show', '')
}, 2000)