JSFiddle - React, Tailwind, and code Playground

HTML

<div class="div1">
  <span>hover me</span>
  <div class="another_txt">
  Another text
  </div>
</div>

<div class="div2">
<span>How to change this text color on div1 span hover?</span>
</div>

CSS

.div1 span:hover ~ .another_txt{
  color: red
}