JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrap">
        <div class="wall">
            <span class="nest">hello</span>
            <span class="nest">bye</span>
        </div>
        
        <div class="select">select from nest span</div>

CSS

.nest ~ .select {
  color: red;
}

.wall .nest ~ select {
  color: green;
}