JSFiddle - React, Tailwind, and code Playground

HTML

<div class="field-1"></div>
<div class="field-2">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed tincidunt consequat tristique. Curabitur vestibulum semper nulla id ornare.</div>

CSS

.field-1 {
    width: 150px;
    height: 150px;
    display: block;
    background-color: red;
}
.field-2 {
    background-color: #ccc;
    display: none;
}

JavaScript

$('.field-1').mouseenter(function(){
        $('.field-2').show();
});
$('.field-1').mouseleave(function(){
    $('.field-2').hide();
});