JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
    <div>Element 1A</div>
    <div>Element 2B</div>
    <div>Element 3C</div>
    <div>Element 4D</div>
    <div>Element 5E</div>
</div>

CSS

#container {
    display: flex;
}
#container:hover div:last-child {
    order: -1;
}