JSFiddle - React, Tailwind, and code Playground

HTML

<a class="link-to-hover">Hover me to see the block</a>
<p>Anything else</p>
<p class="block-to-show">This block is shown only when the link is hocered</p>

CSS

.block-to-show {
    display: none;
}

.link-to-hover:hover ~ .block-to-show {
    display: block;
}