JSFiddle - React, Tailwind, and code Playground

HTML

<div class="a_class">
    lorem ipsum
    <div class="inner">
        <a href="">hidden...</a>
    </div>
    <div class="b_class">
        blahblah<br />
        <div class="a_class">
            <div class="inner">
                <a href="">hidden...</a>
            </div>
            lorem ipsum
        </div>
    </div>
</div>

CSS

.inner{display:none; float: right}
.a_class:hover > .inner{display: block;}
.a_class {
    border: 1px solid red;
    padding: 15px;
}

.b_class {
    border: 1px solid green;
    padding: 2px;
}