JSFiddle - React, Tailwind, and code Playground

HTML

<div class="overflow-hidden iv-wp">
    <h1 class="ready reveal-in">
      This is text over two lines, with a really nice fade effect.
    </h1>
</div>

CSS

.overflow-hidden {
    overflow:hidden;
}

h1 {
  padding:0;
  max-width:500px;
  margin:0;
  font-family:sans-serif;
}

.ready {
  opacity:1;
  display:none;
}

JavaScript

setTimeout(function(){ 
  $('.ready').slideDown("slow");
}, 1500);