JSFiddle - React, Tailwind, and code Playground

HTML

<div id="one"></div>
<div id="two"></div>

CSS

#one {
    width:200px;
    height:200px;
    background-color:yellow;
}
#two {
    width:200px;
    height:200px;
    background-color:green;
}

JavaScript

setInterval(function () {
    if ($("#one").is(":hover")) {
        $("#one").css("background-color", "red");
    } else {
        $("#one").css("background-color", "");
    }

    if ($("#two").is(":hover")) {
        $("#two").css("background-color", "blue");
    } else {
        $("#two").css("background-color", "");
    }
}, 0);