JSFiddle - React, Tailwind, and code Playground

HTML

<div>
</div>
<div class="content">
</div>

CSS

div {
    height: 100px;
    width: 100px;
    background: red; 
        transition: all 0.4s ease-in-out;
}
.content {
    height: 20px;
    width: 20px;
    background: green;
    display: none;

}
div:hover + .content{
    display: block;
    margin-top: -100px;
    margin-left: 50px;
}