javascript animate text code example

Example 1: text change animation css

h1:before{
    content: 'Original Text';
    font-size: 600%;
    animation-name: head;
    animation-duration: 4s;
    animation-iteration-count: infinite;
}

@keyframes head {
    0% {font-size:600%; opacity:1;}
    25% {font-size:570%; opacity:0;}
    50% {font-size:600%; opacity:1;}
    65% {font-size:570%; opacity:0;}
    80% {font-size:600%; opacity:1; content: "Changed Text"}
    90% {font-size:570%; opacity:0;}
    100% {font-size:600%;opacity:1; content: "Original Text"}
}

Example 2: moving letters animation javascript

// Wrap every letter in a span
var textWrapper = document.querySelector('.ml3');
textWrapper.innerHTML = textWrapper.textContent.replace(/\S/g, "<span class='letter'>$&</span>");

anime.timeline({loop: true})
  .add({
    targets: '.ml3 .letter',
    opacity: [0,1],
    easing: "easeInOutQuad",
    duration: 2250,
    delay: (el, i) => 150 * (i+1)
  }).add({
    targets: '.ml3',
    opacity: 0,
    duration: 1000,
    easing: "easeOutExpo",
    delay: 1000
  });